We love our Bumbo too. I don't think it meant to be a chair to restraint bbs so it should be used under supervision. DD had bad acid reflux n this was a life-saver for us so that she can be prop up for a short while after feed. We never walk away from her when she is in it. It is just a devise to help BB to sit; not sometime to keep them in securely. DD learnt to sit on her own very soon n dislike it. But I know it's $50 well spent with her medical condition.