That Host Mammoth is a real beast and more than I would want to deal with. My wife and I and the 2 cats fulltimed in a 9.5' Northstar Igloo. We went about a year and then my wife returned to NY to help the older daughter with a one year old and a newborn. I fulltimed for another year and my wife visited when she could get away. Looking back, we had way more clothing and gear than we needed. We are no longer fulltiming but still travel for several months a year.
The "bad" aspects of fulltiming in a TC are the limited amount of space for storage. We did just fine on clothing, cooking, food. We took a lot of camera gear and I brought archery equipment. Otherwise there was little room for additional toys and hobby stuff. Next we did not have big, comfortable indoor seating. Just a dinette and zero gravity chairs for outside.
The good part is mobility and ease of travel. We could camp in regular forest service and BLM campgrounds without needing a big parking site. Our house was always with us not back at the campground. When driving through a national park we could pull over have coffee, a regular meal, and a nap. Even more important, our restroom was with us. No more outhouses that you can smell from 50 yards.
If you want the comforts of home, 110 electric appliances, and endless water, you probably want something bigger than a TC. If you want to visit remote areas, then consider a TC. Be sure to add solar panels and some good batteries.
