I've heard from a lot of people that love theirs. I was always told that it's not good to prop a child up into a sitting position until they are able to actually sit themselves. Basically, they do things when they are physiologically ready to do them and that we shouldn't force them. I know of quite a few people that have used them after their child can sit unaided as a way of stopping them from toppling while feeding and things like that though.