Overall, not impressed. I have a 7" vertical pipe vent and while they include a damper for every other vent option, they tell you to go buy one for vertical pipe installs (along with the bulbs, which I at least knew about ahead of time). That's more of an inconvienence (HD didn't have one, installed without). The real annoyance came when I realized the fan didn't move freely within the hood. Ended up being the mounting bracket for the motor wasn't level. After straightening it (cheap metal), it at least spins now but since the plastic fan blade is also slightly warped there's still characteristic "off balance fan" noises at high speed. And since there was no damage to the box at all, I'm going to have to blame it on poor workmanship. Also, while the light output is quite good, since the front part of the vent doesn't really have a lip along the front to try to lead moisture to the fan intake.. we see a lot of steam rolling past the front even with the thing on high, or as another reviewer mentioned.. going in through the light holes.
The only thing we're thankful for is that we didn't pay the big box store price for what seems like a poor quality unit. It looks nice though.