I've had one Yo-yo Loach for over a year and a half. He was great, seemed very health and ate his fair share of snails!
You just have to watch out, some Yo-yo loaches don't play nice with the other fish. You may get a mean one, but I haven't got a mean one yet though.
I say get one, they have a intresting personality! You will soon be a loach fan.