Serta Big and Tall Executive Office Chair with AIR Technology - Ergonomic Layered Body Pillows, 350 lbs Weight Capacity, Bonded Leather in Roasted Chestnut - Perfect for Home Office, Gaming, and Long Work Sessions

The recently added "UPDATE" section is of most importance while reading this. All of this outside of the "UPDATE" section is a review of the chair AFTER getting a return/replacement for the first one, and then only after a few months of that chair's lifetime. The "UPDATE" section makes it clear what you are REALLY getting.If you can afford that $1,000 "Big Man's" office chair, GET IT, you will be much, much happier in the long run.Included assembly Instructions consisted of two small pieces of paper stapled to the bottom of the chair seat, a simple diagram of 4 of the screws being put into the bottom of the chair and how the chair seat connects to the back, sufficient for me but not for many. The first thing I noticed was there was a gouge about 3" long in one of the feet. I inspected the caster-base assembly carefully and it was obviously used.So, strike one, they sent me a used basepiece that was probably recovered from a return. The chair I got had a manufacture date of November 11, 2014. So the chair is over a year old.The chair assembled fairly well although the brass grommets that accept the screws to put the arms on, the bonded leather material is crudely cut so the grommets stick out, kind of a messy job. The tongue on the bottom of the back piece that joins onto the base on the bottom of the chair was poorly milled, the holes for the screws, they were poorly milled and one of the integrated washers on the screw head fell into a hole that was milled a little bit too large. Not the screw head, the WASHER fell into the screw hole.The back piece tongue did not mate evenly or flush with the top of the base on the bottom of the chair seat. A portion of locktite was painted on each of the screws. Once the screws were tightened, additional torquing was necessary to get the metal of the back piece tongue to sit flush on top of the base on the bottom of the chair seat.When finally assembled, (one must logically deduce which screws go where), the chair leans a hair to one side, which sucks. One can look at the chair and see that it leans just a hair to one side. This is probably due to the pneumatic base pin's acceptor hole in the base being too large for the pneumatic base pin. When you sit in the chair and move for example to reach out, the chair jiggles slightly on the pneumatic base pin.When you sit in it, overall it's nice. I'm 6'1" and 200 lbs. I'm lean. The chair arms are at a very good height for me. I'm resting my arms on the chair arms while I type this. The large screw underneath the chair works to set the "lean back" tension. I turn it tight so it will only lean back a little bit when I put my arms up to stretch or when I lean back a bit to pause or rest for a moment.===== UPDATE 11-20-2016 =====The chair is less than a year old, its "PLANNED OBSOLESCENCE", (i.e. engineered deterioration into junk), is showing. The large screw knob under the chair seat that tensions the lean back feature of the chair is screwed to maximum tension and that is weakening significantly and soon the chair back will start leaning back with the slightest pressure from my back. It worked well jamming myself back into the chair having the touted "lumbar support" push against my lower back, but that's not going to work anymore as the chair back is not going to stay upright much longer.As well, the touted "lumbar support" collapses quite early on, you have to stick a pillow shaped properly into that lumber support opening to increase the support padding.Small, lean Chinese people do NOT understand how to manufacture a BIG MAN'S chair. Or maybe they do and take advantage of the stresses the chair will undergo to engineer it's demise in under a year ... SO YOU HAVE TO BUY ANOTHER and keep them in business, and keep their absurd profit margins rolling in.Remember, everything after this update, and before it, was written when the chair was only a few months old.==========================For my size, weight, etc ... it's a good match. I don't think a 350 pound 6' 4" man would be comfortable in this at all and I don't think the chair would last long at all with a person that size sitting in it during the work day.The lumbar support for me is very good. I can push up on the chair arms to lift myself a bit and scrunch my rear into the back of the seat every half hour or so and I get a renewed, firm, lumbar support. I like the chair a lot for it's support and from what I understand it will mold to me somewhat.If you need more lumbar support, you can put a layer of memory foam perhaps, or even a small, well shaped pillow behind and inside the lumbar support pad, so it has some flexibility in that area. If the lumbar support gives out a bit over the years I can bolster it with a bit of high density memory foam.The worst part about this chair is that the base on the bottom of the seat, the hole in it to accept the pneumatic base pin, (axle), it is too loose. Over time, especially with heavier people, that hole is going to ream out a bit and the chair will wobble more and more and finally will lean badly to one side. I'm thinking about fashioning some type of sleeve, maybe just a few milimeters, or some shims to tighten up this loose, weak wear point that is really the most important mechanical point on the entire chair.The pneumatic pin works fine for now, when I get out of the chair and raise it ... it raises up pretty fast.The chair had little to no "new smell" and I have a very sensitive sense of smell. I suspect it is parts and pieces of returned chairs that were put into a box and made into an order.I may return this depending on how it wears in the next few weeks as I think the loose connection between the pneumatic pin and the base hole are a defect that will wear out very quickly. Nice to sit in, but how long will that last?UPDATE: December 11, 2015I am not able to get used to, to grow accustomed to the slight lean to one side of the entire chair. The right side of my rear end slides into the right edge of the chair after sitting for an hour or so, and that really, really sucks. I'm going to release the screws on the bottom plate and re-torque them and see if I can get the seat a little more level, maybe use some tough, steel fender washers. If I can't get the chair level, I'll have to return it. It is a year old and the foot base I got with it is obviously used and scarred up a bit as I wrote before. I'll return it for another and see if it is any better. The seam in the middle of the seat doesn't line up with the seam that runs down the inside of the middle of the back, so I think I'm dealing with a defective chair, as did the first owner who returned it. Good product, but crappy quality control and questionable shipping of obviously returned merchandise.