Anyone putting up a shelter, be sure and stake it down well and leave the front flap down, especialy on windy days.
I have a round top one, rated for snow, etc. very satisfied with it. Never had a problem on allot of very windy days, however, one morning I found it upside down, a few feet from where to was supposed to be.
We put it back were it was supposed to be, hardly any damage, so they are rugged. We had it staked with the stakes provided, but had the front door flap rolled up. Wind got inside and away we go.
Now we tie a rope from the roof to my golf cart which is parked in there, it wont go anywhere even if I forget to roll down the front flap. I think they will stay put with the stakes provided if you keep the flap down.