i picked some up instore on an impulse before i had dd4. been using them when out and about and its a pretty mifty system for a little baby. i dont know how it would hold up with a heavey wetter or older baby, but for a little one who still poo'sw every hour its holding up pretty well. am on the look out for some more covers in medium as they are out of stock online and having problems getting them in from suppliers from what i understand.