I've got a pack of 4 of them. They really liven up the tank, always on the lookout for scraps of food. They love pond snails too. I can dump 20 snails in there and they'll be dead within a couple hours between the loaches and cichlids.
BTW, what kind of plant is that in the pic? I have some of that too, and my loaches love playing in it. I've been calling it "creeping hygro" due to the way it grows, but I haven't ID'd it yet.