I just purchased this kayak and took it on a 6 hour river trip. I'm 6ft 220lb and with my girl there was plenty of room for two soft coolers between my legs and still be comfortable while paddling. I also stuffed two PFD's, fishing gear and snacks in the dry hatch so there is plenty of room there.
As for the boat itself, it tracks good, very stable due to its size and it paddles pretty well also. For the money I would recommend this kayak to anybody looking for a reasonable priced tandem.