I had a 4 man and used it for three seasons,plus summer.  A lot of people like them but I am not one of them.  There was a lot of condensation unless the stove was on.  On a  sunny day moisture from the ground condenses on the walls and you are greeted with soggy gear.  In heavy rain the floorless thing becomes a problem.  The slopping walls mean the 4 man is a 2 man.
In cold weather the stove does work well and this is the strong point of the tent.  I sold it last year.
Lefty