they are kind of fun. i havent used one enough to see how strong they are, just a few tastes from a kid at work who got one...i love being able to drag it and blow big fat clouds of "smoke" on the sales floor in front of all the customers. or in other indoor public places, its a kick, even when no one is looking you feel naughty. its fun
it tastes like shit though...at first i thought i tasted something a little tiny bit like tobacco but all hits after that just taste like a light version of meth...eeewwww thats enough to keep me away, i dont care much for the taste of freebase plastic.