We have always had the issue of gunk and bugs making their way into Bruce's dish. This has helped to eliminate that completely! We got this in the mail about a week ago and it is as crystal clear today as when I set it up last week. We have added water but no other maintenance has been needed. Setup was pretty simple the instructions were mostly photos but I got the hang of it. Bruce was a bit hesitant to use it as first but he warmed right up to it once I gave him some time to sniff it out. He has been loving it so far. My favorite part of this is how QUIET it is. We have tried several flowing dishes in the past and the motors were a bit too loud for me to feel happy about it being in my kitchen. The only thing I hear is the slight trickle of water. My husband has complained it made him have to run to the bathroom a few times though! This is certainly worth the very small investment, the time is saves, AND my happy cat.