In reply to DaveHK:
I had one for a couple of years, my comments would be:
Bombproof - but difficult to put up quickly on your own.
Felt fragile - never managed to damage it though & I'm clumsy.
Went up inner first - a pain compared to most.
Nice & roomy if you're out for a few days.
Porches are really small - you can just get a rucksac in each end.
Cold in winter if you're on your own.
hth.