This is the second Springbar tent system, that I've purchased, first was the Classic Jack 100. Bottom line, you won't find a better quality canvas wall style tent, and most definitely, not one that's easier to set up. This system is unbelievably stable, warm and moisture wicking, can't wait to use the Hot Tent 140 System. Where with the Classic Jack 100, I used a Buddy Heater, with a six foot line, off of a full sized propane tank, in negative temperatures in WY, with an abundance of snow accumulation, to boot; no problems, what so ever, stayed warm and never new it was -10 outside, just cracked the two small side windows, to insure there was no CO build up, and brought along a portable CO detector, just in case and to test, if any levels were present, never had an issue! Love the Springbar line of products!!!