[poelzi]

I had back problems from my crappy office chair that I used for more then a decade.

I searched for month for a good replacement, sat on every chair I found in nearly every furniture shop in town. After some month, I found the best chair I ever sat on, and it's by far, not the most expensive one ;)

http://www.officeline.se/products/hoganas-eco/

This one is the hit, you can unlock the base so you can use it in different heights. The backrest pressure you can adjust with a button, different locks and full flexible arm rests. I let everybody test sit on it who cares and I only heard excitement so far.

Combined with electric table I started to change my working position quite often and my back pain was gone after a month.

[GoToRO]

I bookmarked it, who knows. What I don't like about it is how wobbly it looks. Also, why me, as a software developer do I need those wheels to move in any direction. I just need to move back and forth and only when go or leave my desk. On my chair I removed the wheels and put static legs and I put my table on wheels that move only backward and forward. The wheels dig into the carpet, so the table stays put if you don't push too hard.

For me office chair is one thing, and software developer chair should be another.

[poelzi]

They give 10 years warranty. I have quite some understanding in mechanical systems and it is well build, thick steel plates.

The point is this, sitting long in one position is bad for your back and general posterior. Of course you can change the rollers into static ones, but I wouldn't recommend it.