I've been using a pair of 10x42 Kahles binos for about 4 years now. I've also owned a pair of 8x30 Swarovskis (stolen, sob!) and have a pair of the 8x20s as well.

They are excellent optically, and a bargain in the high end optical world. I just could not find a reason to pay the 50% additional premium for the Swaros.