Impractical, inadequate
I ordered 5 of these feeders for hedgehogs and my cats (for when I'm away on holiday). What I didn't know is that the transparent tank just sits loosely on top, it doesn't click into place. This means that if you bump into it, the tank tips over easily and the food spills out. Now I have to stick tape on both parts every time to keep it together.
Also, you can't open it from the top, so the tank is only ever half full.
The cats are back to using the old feeder, which is much more stable.