Kampa rally 390 pro air awning ?

czestulip

Hi we are thinking of buying one of these but have been told by suppliers that they are in demand so there is a waiting time. Anyway l read a comment in a discussion about this awning asking if you used it for say a couple of weeks would the air start to
go down? Not sure if that's a silly question. And in general has anyone got one of these and what they think. Another question there is another air awning on the market call Oxygen air has anyone got one of these?  Thanks. Sue