I have extensively researched fountains and tried three. I never had trouble with my cats drinking enough water from bowls, until recently. My elderly boy started swishing water all over the floor, which indicated to me that he needed moving water to find it and feel secure drinking it. A nearly all-stainless steel fountain worked initially, however it was challenging seeing if the water was low and clean. Something about it eventually got him swishing it again as well. It was quiet, but maybe not enough stream? Another fountain with an external pump was too loud. We then took on a kitten who was biting out fur, possibly due to an allergy (plastic? In which case, the first fountainโs inner tray was all plastic, despite the rest being SS.) Enter Brook - love that it is nearly all glass and the little plastic the water does touch is minimal, it has a fantastic fountain/moving water design that is quiet (for me!), easy and enticing to drink from (for kitties!), and is easy to maintain and clean (for me!). The cats (all four, yes we have four!) LOVE it and drink heartily from it. Because I can easily see the water I am cleaning it much more often than the SS fountains which keeps my cats happy and drinking. And customer service is top notch - responsive and goes above and beyond. I had ordered replacement filters and asked if they would include a cord clip as mine had broken - they sent me more than just the one clip I requested. This fountain is worth every penny and then some - skip the others and get the right one to begin with.