This was a great Christmas present for my 3-year and 1-1/2-year-old grandsons this year.  They were thrilled to play inside, running through the tent via the door and the circle opening which I understand can accommodate a tunnel system for more interesting play.  Their mom parked it in a corner at their home with books and puzzles for quiet play time for the 1-1/2-year-old.  It is large enough for an adult and child, but just barely.  Two toddlers fit nicely.  I laid on the floor, partially in, and read books with the younger grandson who seemed to enjoy having his own space.  The tent seems very durable with a clear tab at the top for supervising inside play.  I would recommend this product.