Let me start by saying that the heated pad in this thing is AWESOME! When our feral cat comes out of this house and I feel the pad it’s super warm and is doing exactly what it says it does. So why 4 starts instead of 5? Because the “insulation” is basically nothing. Sure, it’ll keep out the rain and snow (which is great), but the sides of this thing get extremely cold when temperatures drop and I don’t think it holds any kind of heat at all. I worked around this by adding styrofoam to the walls (and rear entrance)  and concocting a “roof” of styrofoam as well that’s about half the height of the actual roof on this thing to try and keep the heat in and the cold out a bit better. All in all though it’s a great shelter if u have an outside cat that hangs around and needs some warmth on those super cold January/February nights to help them survive. 

(Our neighbor also has one that’s in her shed out of the elements and her feral sleeps in it every night.)