we purchased these chairs for our office expecting great comfort, was highly impressed first couple of days but after that the back support just started to drop randomly when you lent back on it and will not stay at the height you need. Bad design fault - needs a pin or something to lock it in at preferred height. Don't buy otherwise you will be wasting your money.

I am particular about comfort. I went to the Officeworks store and tested various office chairs, and I found one that is very comfortable to sit in. The back support doesn't feel as rigid on my back as a typical office chair. The design allows the back support to move in sync with my back when I lean back. I'm extremely grateful to have found this chair.

I've had this chair a couple of weeks now and have nothing but praise for it. I had twisted my back the day before I bought it (bad pickaxe technique!) and this chair actually helps fix it! The lumbar support is fantastic - although it may take you some time to get the four adjustment options in perfect balance for you. But, the effort is well worth the time it may take. The back height adjustment, which caused some people problems, is an extremely simple mechanism - if you seat the back firmly in the seat as indicated in the setup diagrams. It should click on a ratchet as you raise it slightly, this makes it impossible to slip. If you take it too high, simply raise it gently as far as it will go, you will hear the ratchet clicking into place as you go. Once you have it at maximum height it will then return to the bottom position and you can start again. The clever lumbar design means that getting the back height right is crucial. A very nice feature is that the back position is not cast in stone, but has some flexibility built-in which I find very restful. Finally, if you still don't like it after checking that you have assembled it properly, it has 15 years warranty. What more could you want?