WOW! Can't beat that price with a stick!! Even factoring in their high shipping cost $225 for a pair of seats is a steal!
I
had a set of seats identical to those Costco ones that I got from Pep Boys a while back for $130 ea on sale. I wasn't impressed with the rotary knob to move the seat back. It took a whole lot of turns at an awkward angle once installed to move the back even a little bit. The plastic rotator knob covers kept popping off and breaking the thin retaining clips. The perforated vinly was nice enough but the seat was a bit too firm for my taste. Kinda like riding on a park bench feel to it.
EDIT: After zooming in on the pic of the Costco seats they appear to have a lever type release for the seat back. They are the same style as the others I had in appearance every other way though. You'd have to sit in them to decide if they feel good for yourself or not.
These new seats I bought are much more pliable (cushy for da tushy) and they have a lever type quick release for the seat back. You do have to assemble the backs to the bases yourself but for the price I was fine with that. I had to make some small holes in the fabric and foam in a few places for the bolts to pass through, but again, no big problem for anyone with any mechanical sense at all.