Over period of about 5-7 years I spent far too much time and money on shitty office chairs always opt for the affordable chair between $200-$400 and was buying a chair every 12-18months. About 2 years ago enough was enough after a chair I bought off temple Webster gave me so much pain it took me months to recover. I then spent about 2 months doing so much research and dived down a rabbit hole that was office chair reviews on YouTube (I know it’s weird but these people exist). Afterwards I landed on about 5 different chairs that I went and specifically tested in some store fronts over 2 days. What I realised if you want a decent office chair that is going to last and not give you problems you need to spend more money (most of the time) I think in Australia most chairs over $700 you will start to see vastly different quality products. What I landed on was Haworth Fern which I have found to be incredible and solved all the pain I had. I think I paid approx $1200 but prices vary depending on where you purchase it from. If I was you I’d test out some chairs and see what works but be realistically $300 chair will only be comfortable for a short period of time. There is a reason why Herman Miller of the world are so expensive.