more of a winter tent...
I certainly have carried the weight of the Mountain 25 around; it's heavy. It is worth it, though. I use this here in Alaska quite a bit and the summer is the only time I regret it. The combination of front and rear mesh doors and the "windows" at the top of the ceiling gives it ample ventilation during the winter and fall. It starts to lack in the spring. The rest of the tent sets up easily with little pole snag and stays in place regardless of wind and snow. The front vestibule is large enough to keep my stove and other odds and ends. That's a nice plus. Overall, I trade the weight for peace-of-mind in the winter time.