Ordered 2 of these for an office remodel that I’m doing...finally ready for furniture assembly and 1 of the 2 chairs went together no problem...the 2nd chair however is missing the hydraulic cylinder so it’s basically worthless unless the manufacturer can supply.  On the chair that was assembled ..looks great but they seat is short (under your legs), doesn’t come out close to the bend in your knee so it feels like you could slide off.

Update..  Wayfair is getting me the missing piece so kudos to Wayfair for being such an awesome company to deal with.  Only negative I can say about the product is the comfort factor with the seat being short.  It looks great thought:)