Sharing an experience
4 yrs ago I bought an Outdoor Revolution Navigator Kombi - Drive -Away awning £500...
Nice massive big one

Used for x3 annual camping holidays approx 10 days each use - mixed weather - what you expect in UK/France
Put it up last week in Cornwall - (yes - worse weather for months ) - and it leaked like a sieve. Not seams but thru the fabric.
Soaked it in the mountain warehouse sprays when it dried first time but to no avail
Never stored wet -
I ended up leaving it in the campsite skip - couldn't risk spoiling a (nother !!) family holiday on the chance that spraying or painting it with weatherproofing would work - mixed reviews on efficacy of those on UK Camping forums.
Did I do or not do anything wrong - or is it a case of buy cheap buy twice -
But is £500 cheap for a drive away for what amounts to a x3 use disposable awning ??
PS - I will cut n past this to the Outdoor Revolution customer services dept - and post what response I get here...
Matt - Brighton