First off, just a bit of humor...
Now, the really interesting thing is that while that chair is going to be simply too big for most people, it's the perfect chair for the Jolly Green Giant or Paul Bunyon!
Which is to say, there's a chair out there for everyone.
Now, let me ask you a question- At the end of the day, are you going home with a sore back, shoulders, tired legs (even though you sat all day), tingling fingers, numbness.... or any combination of the above?
Consider how you're sitting then!
Is your chair right for how you're working? Are you sitting in front of a computer all day, typing away and sitting in a chair that's not meant for the task?
Perhaps you're sitting in a chair which is meant for conference rooms. Fixed arms, can only go up and down with a simple tilt mechanism and the back is fixed in relation to the seat.
Consider, then, a chair which has adjustable lumbar support, a back which can freely move, arms you can adjust, a seat-slider mechanism and comfortable padding.
There are other issues, of course, but I'll leave that for another day, I just wanted to put the thought into the mind that your chair, which you spend more time in than anywhere else, is very important to your overall health!
Visit me at SitBetter.com and spend some time, heck, I'll even chat with you!