Nice enough mats but after 2 months of use (2 year old and 6 month old) the thin plastic is peeling from the surface of the mats and the (now) 8 month old is trying to pick it off to eat. I'm sure they'd last longer if nothing was ever spilt on them and they didn't need wiped clean daily :)
The instructions for replacing this screen didn't actually cover the ace2 when I bought it, you need to do a bit of digging online to find them. Biggest pain is getting the old screen off as it's glued on. Pulls away eventually but I smashed up the (old) glass a bit doing so.