I absolutely love my Kodiak 10x10. I'm a wuss I guess, but I hate not being able to stand up in the tent. I've been known to set in there in a camp chair, drinking a glass of wine, listening to a Louis L'Amour western, pretending I'm Earnest Hemmingway in safari camp.
And the Buddy Heater warms it up nice pretty quickly. I don't run it during the night, old habit from back in the old army days. We couldn't run the heaters unless we had someone stay up to watch it, and we'd all rather get more sleep than have it on, we just piled on the sleeping bags. So now, I just keep the heater where I can reach it from my sleeping back, turn it on when I wake up, lay in the bag while the tent warms up and think about my days plans, then thinking its still cold get up, and realize that its only cold down low, up a few feet its plenty warm.