Great value, although the mirror finish tends to scratch and damage easily.  The best part about this deal is that you don't care if you break or lose a pair.  Violent rapids while kayaking?  Who cares if your boat gets flipped!  You've got 23 more!  Crazy concert?  Who cares if your glasses fall on the ground and get trampled?  You've got 22 more!  Forgot a pair in a car you sold?  Who cares, you've got 21 more!