I used the seek outside cimarron with the medium stove this year a bunch while sheep hunting Wyoming. Did a couple 5-10 day backpacking trips, and debated about bringing the stove, glad I did.
Got into all kinds of weather, snow, rain, etc. and its pretty nice to have a way to dry out all your gear each night.
I found that if you damper the stove down all the way, fill it as full as you can, you get about 3 hours out of it. The other nice thing about the stove, if you're just boiling water, no reason to bring a separate stove to cook on. You can boil water in just a few minutes if the stove is going good.
I was pretty skeptical as I got the tent/stove/nest through a promotion deal but it worked very well. I can think of a lot of miserable nights I've spent out hunting where it would have been nice to have a setup like the cimarron.