Great THREE Season Tent!
This tent is fantastic! It goes up in a flash, literally 2 minutes. It breaks down just as easy AND packs back into it's bag with absolutely no effort.
The ventilation is great! Along that line of thought though this is a THREE season tent. Me and my buddy had the bright idea to push our gear for a low temperature test in preparation for an early spring Lake Superior trip and you WILL freeze your butt off in this tent in cooler weather. Of course it was supposed to only drop to 35F that night and it ended up dropping to 14F, lucky us!
Anyway, the quality of this tent is great. The stakes provided are tough enough to get in the ground even with a lot of gravel and stones in the ground without bending. The overall fit once up is great. If night temps drop significantly you may need to snug up the fly a little but it's not problematic.
The only caveat I would have is that the vestibule could be a little larger. This doesn't apply to me since I'm only 5'9" tall, but if you're over 6'2" tall you won't have much leeway when you lie down, especially if you bring any gear in with you. STILL, THIS A GREAT TENT!