My 3-year-old son enjoys drawing on the surfaces of "everything" though he has a drawing easel and a ton of sketch books. When I bought Aquadoodle for him, he stopped using messy markers and crayons on walls and tabletops. He is really fascinated by the Aquadoodle and has been playing with it more than a couple of hours everyday. The mat is tough but easy to fold. Water pen is easy to refill too. My only complaint is that there is only one Water pen included whose tip is not that durable. If you buy additional pens, you have to pay around 4 to 5 dollars. Other than that, I am pretty much impressed...