Hi, We're looking for a travel highchair and wondered if [[http://www.kiddicare.com/webapp/wcs/stores/servlet/ProductDisplay?storeId=10001&catalogId=10751&langId=-1&productId=111873&source=froogle&cm_mmc=Froogle-_-Shopping%20Sites-_-CPC-_-Froogle these]] are any good? They look flimsy but surely they're ok? On this website it says from 8 months up, on the box it says 6 months - 30 months! Thanks