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?"

It is comfortable to sit in for longer periods of time and I like how adjustable it is!

The armrests can be adjusted in height and the backrest can be reclined far back. The cushions provide excellent support and help me sit up straight, which can be pleasant for the back. The seat cushion is made of cold-cure foam and looks very classy.