After looking at DX and AK chairs I settled on an AK for no real reason they seam very similar. It arrived today 2 days earlier than predicted date and went together with no problems. Its heavy, and its quality, I'm and engineer and I can't fault the build, its a solid thick steel frame, the wheels are well designed, the armrests are good, it comes with pillows which are firm and do well supporting the head and lumber which is the reason I bought a gaming chair in the first place as I have lower back issues. I'm very happy with it, in fact, I have tried to fault it but I can't it adjusts in several ways and the reclining function is great to go from laid back open world MMO gaming to sitting up straight playing BO3 online PVP, a luxury I never had before. The mechanisms feel well built. Its clear AK racing are going to be big in the gaming seat world for many years with quality like this. It was expensive. but you get what you pay for.