Easy to clean, light, quiet, easy to use
Advantages:
+ easy cleaning
+ light weight
+ dishwasher safe
+ Add water easily
+ quiet, if there is enough water in it
+ easy to disassemble & reassemble
Disadvantage:
- With calcareous water, it quickly gets limescale, which is difficult
- For 3 cats, water must be replenished almost daily
All in all: TOP TOP TOP!