Jumpin in a little late, but I wanted to put my 2 cents in. I bought a Clam XL4000T. Its the insulated version. So far I like it a lot. Tons of room to spread out when you want to take a nap. I bring the BigBuddy heater and a 20 pound tank, a couple of bag chairs, drinks and snacks, radio and kick back and enjoy life. The net holders on the roof are great to hold gloves and other odds and ends out of the way. Big buddy on high for 5 mins will get it up to about 90 degrees inside. Once its all set up and running I will strip down to a t-shirt or light sweatshirt. Its not small when its packed up, but what shelters are. Its like most pop up shelters-----little bit of a bear to set up when the wind picks up. I like the interior tie downs. It helps when setting up when its breezy. I chucked the ice anchors it comes with (worthless). I bought some SPAX lags from HomeDepot. I drill them in with the same drill i used to auger my ice holes. The SPAX screws have saw teeth on the threads which help them dig in fast. Hopefully we have a longer/thicker ice season this year to enjoy it more. I know my little guy enjoys it when we go out.