Gee, I'm surprised you're not happy, Tambo are a very good manufacturer. Perhaps the issue is the fit onto a another trailer?
I prefer the cover to have full zip with velco, which stops dust ingress. My previous camper used press studs and certainly dust was able to get onto the tent under the cover.
If you're traveling 1 or 2-up, then a hard floor might be more suitable, but it would not be accurate to say that hard floors are easier to use than soft floors as a categorical statement.