Just installed but so far I am very happy. Compared to a name brand RadonAway fan, the Vevor is made of noticeably thinner plastic. If I was installing it outdoors I might think twice - it might not hold up to the elements as well but that is just speculation. That's the only negative I have to say about it. The fan bearings are clearly superior to the RadonAway. It's also quieter and at the same time more powerful, even when reduced down to a 2\" pipe. There is a small amount of vibration that could induce noise if mounted directly to something that can resonate, but the fan itself is very quiet. If it lasts for any decent amount of time it will be a massive bargain. Power usage will depend on the situation, but mine is at 56w which is quite efficient.