I have a Cloudburst 2. If you get the sewn-in floor, it is bug proof. I have used it at 6000ft in Wrangell St Elias and although it did stand up to the winds (I'm guessing 30-40mph gusts), I wouldn't want to spend an extended trip with those conditions constantly, myself. However, it is not a 4-season tent and isn't entirely made for above treeline camping (which we were doing in AK).
Other comments I have on it is that stitching is coming out on one of the guylines and my cinch sack has exploded. I suggest to be very very careful when you get the silnylon sack wet, seems like any tear or rip, becomes a hairy mess, my sack has exploded. As far as my guyline, I don't know exactly when the sewing started to come out but it was certainly after camping in AK that I noticed the sticting coming out and there was another problem right from the start, one of the pole holders stitching is out such that I have to put the longer front pole in a certain direction or else it'll catch on the stitching and wont come out of the pole sleeve. It's a nuisance but it's been like that since day one and talking to HS, I didn't want to send it back in just for this.
My other gripes is it is awkward to get in/out with the center guyline mounted, it's HUGE, it's not the best temp when trying to bushwack camp, it's actually longer than some tentsite platforms (like at 13 falls in the White Mtns, I had to sort of stake my tent outside the marked stone rings there on one of the campsites that we stayed at.)
having said the above, I still like the tent as it has done what it's supposed to do, be a lightweight below-treeline shelter for 2.
Jay