I personally don't have any issues with my ramshorn snails I have. Just a word of warning - My yoyo loaches do not eat any of them. I'm pretty sure they don't, and they're supposedly one of the best snail eaters.
If you don't get overrun with ramshorn, I can't see this as a problem since the turn over my substrate. Of course, they do release added load to the tank but I actually don't mind those particular snails.