We had one & still use it occasionally now (just because DD likes it!). Both of mine liked to chew on the trolley handle, so with the cover over it I felt much better. Even though they happily ate dirt & liked the windows at home (LOL), however I know what sort of dirt & things they are, I don't like the thought of other people's germs etc on the trolley going into my baby's mouth.

Each to their own