Because the armrests are pre-assembled and because most of the screws are already in the right place, assembly was a breeze. What this implies is that you may quickly position the part to be attached, loosen the screws, and then screw it back on. The assembly is, overall, quite easy.

The fact that Dxracer is still supporting parts for a 5-year-old, out of warranty chair is great! The hydraulic cylinder that I ordered came in within a few days, replacing the old one took me about 30 min with a hammer. Now my chair won't sink down randomly anymore, the leatherette holds up pretty well after 5 years, no cracking to my surpise. Will buy another chair from Dxracer again when it's time!

Replaced the pivot mechanism again, due to extreme use. Fit like a glove, and fits on older chair models too!