I have this one and my kitties love it. My bengal even plays with his favorite toy in it -.- My one complaint is you need to line the little filter/motor cabinet up with the opening of the top part. There’s not exactly a set place for it but not enough of an inconvenience for me to toss the thing. It’s, BY FAR, the easiest to clean and change the filter.

My issue is hard water so occasionally I have to soak the whole thing (motor included) in some vinegar and it works like new. I’ve had it for almost a year now and have no issues. Easy to maintain. Also, replacement motors are inexpensive.. which I only looked up because my other fountains motor kept breaking so I wanted to make sure if it happened again I could easily replace it.