I was very happy with this waterer; I bought it because I was leaving town for a week and knew my pet water fountain would run out of water way before I returned... This waterer definitely had enough of a reservoir to last the week, but since it's not constantly re-circulating like my other one, cat hair and cat food had collected in the bowl by the time I came home... At least I knew they had water while I was gone!The plastic that it's made of is definitely sturdy - I wasn't worried about it tipping over. Plus it's really easy to clean. I went back to using my electric pet fountain now that I'm home again, but will definitely use this waterer when I go away!