I have an older model (~8 years) and one of the wheelbase arms broke off. DXRacer was responsive to my email question and told me which base would work with my model. If you're looking for parts, the links can be found in the FAQ question: "If my chair's warranty has expired and I need to purchase corresponding parts, what should I do?"

Very happy and comfortable. The chair itself seems sturdy and easy to assemble.

Very comfortable chair overall, been using it for the past month now and can say being able to recline is an absolute game changer. One small thing i have to complain about with this chair specifically is that the armrests are a little dense and uncomfortable, but you can move them in multiple directions giving you the best chance of being the most comfortable. Overall i would give this chair a 9/10