This is an impressive pond filter. I was going to spend hundreds on one at the pond store, but found this and decided to give it a shot. It was easy to set up and included all the adapters, parts and pieces I'd need. The water looks incredibly clear. It is easy to backwash it and dump the waste into a watering can/buckets. I haven't tried the UV light, so I can't really speak to that part. I have an inline UV light that I use instead of these smaller lights built into filters. Feels like it's good quality. Would definitely recommend.