My kids love their Skyfort II playset.  They want to go outside every chance they get to play on it.  It does take up a lot of room, though, so make sure you have the space available before you put it up.  Pay close attention to the detail in the drawings, as there is very limited wording in the instructions.  Organize everything by section before you start will save a lot of time.  It Is very heavy and sturdy.  I even climb in it myself sometimes!