I have owned a 3R for more than 20 years and finally replaced it with a 2R. Both tents have the side windows and use them often in the summer. I used the 3R for more climbing and backpacking trips then I can recall and never had a problem with it. It stood up to winds on winter climbs of MT. Hood that exceeded 50mph. When others where out trying to secure their flapping tents we were snug inside the Warmlite with almost no movement of the walls.