i have a peg perego one and it sucks! all the food gets trapped under the cover and such. takes ages to clean. I only use it because it was freeand i wasn't sure if dd would use it. she only used it for 3 months anyway.

My friend had a fisher price one that you strapped to the chair. it took her max 10mins to clean it post dinner but was usually only a few wipes. i guess because it just goes on a standard dining chair it could double as a booster seat.

HTH