I've had a pair for about eight yrs now.
Some of the best money I ever spent.
I've never owned Sworo's or Leica's but I did replace a pair of Leuppy's with the Zeiss. No comparison, and I'm a died in the wool Leuppy guy.
Buy em. /ubbthreads/images/graemlins/grinning-smiley-003.gif