Its a great house. Yep its heavy, yep the cover is bulky compared to a single layer, yep I'd buy it again. You can always pull down a zipper or 2 (front and back doors) if you get hot. For what its worth I switched from a Clam Yukon TC (normal sides with a insulated top) both are a similar size. On below zero days in the clam I would have to use a big buddy. In the otter I use a buddy and rarely turn it on high.
This was the third morning of my trip up to Northern Wisconsin out of my Feelfree Lure 11.5 kayak over the 4th of July. Had great conditions on a small lake and ended up hooking into a few good big bass on spinnerbaits and topwater frogs. The last bass I caught demolished my frog and I ended up pulling in a ton of weeds with it!