I've had one for the last couple of years and really like it. I've ranged small cows and deer at 800+ yards. It is a bit on the big side but the size does help with stabilizing the unit while ranging at long distances.
Yes, they are slightly larger than Leicas, but the Zeiss' range finding capability, speed and accuracy are the best on the market.
Second to none.
My two cents. And I have had several brands, and no dog in the fight.