YMMV is the operative word here. The Performance where I picked up the road bike I bought online during a sale asked me to test ride before leaving the store. The bike operated perfectly and they spent quite a while working with me to get the seat adjusted just right. The bike has been really comfortable, too.

OTOH, my gf bought a bike from the same store based on my experience and still isn't happy with the shifter performance. We've had it back twice. Whether it is a problem with the bike/shifter or the mechanic, IDK...