I have no SO experience but I do run the Sawtooth and Tut.
The tut is great as a light weight single man mega shelter. With a stove, stacks of wood and gear there is still room. With 2 guys there is still room for the stove, wood and that's about it. Being in the northwest when there is 2 guys in the tut I usually run a tarp or plan on keeping my backpack at my feet and tight against the tent wall. There is also no entry area an one guys sleeping bag will be exposed to the elements on entry and exit. I don't have any experience with more than 2 people in the tut... In the wind, well you don't want it in the wind. It can handle a breeze and any more than that and she raddles and rolls. Havent had any failures yet but I try to tuck it out of the wind behind all the time.
The Sawtooth is a beast. 2 guys with a stove and there is still room to sit, store gear, dry clothing, stacks of wood. During a goat hunt we had 5 guys stacked in there for dinner. It was nasty out and a little cramped but it was warm. With three guys the middle guy is in a crap spot between the poles. If all three guys are 5'10" or taller someone is drawing the short straw (I am 6'0" and it seems like when i sleep in the middle im always in contact with one pull or the other.) I haven't spent a lot of nights in there with 3 guys, maybe a handful, but its doable without a stove. There is still room for gear but I would recommend a tarp to store stuff if the weather turns nasty. The sawtooth bucks wind. I haven't been in any crazy wind storms with it but we had the tut and the sawtooth side by side on a ridge line and one shelter was moving with the wind while the other didn't hardly have a ripple.
Going from a floor shelter and no head space to a floorless with more room and something you can stand in is awesome but having a heat source is a game changer.