We bought this set based on the mix of favorable reviews and were disappointed. The mask leaks. Most people probably know this, but a GOOD TEST is that you should be able to (on land!) press a mask against your face and have it stick by "suction" (without using the strap). Neither of the two we bought came close: air hissed in and they came off within 1-2 seconds.The gasket around the mask that conforms to your face has distortions in it, and is made out of a less-pliable material than that of our other snorkeling set mask. I was hoping this was a one-off problem, so we ordered another identical set and had it overnite-shipped. Same problem: the mask gasket was distorted and had small kinks in it.So, I have to conclude there is some sort of production problem. If you buy this set, at least BE SURE TO TEST the mask using the above procedure so that you don't discover the problem on vacation.Hope this is useful...!