For years my Swaro Laser Guides were excellent... Excellent as in repeatable readings out to and past 1900 yards in the right conditions (not in direct sunlight and against a steep mountain/hillside). I could get to 1000 yards consistently in just about any conditions, even antelope in a sea of sagebrush on a sunny day... All of this was hand-held and I've never used the tripod attachment. But after years of hard use their ranging ability started to diminish, and they began to give false readings (verses 'no reads'). When they would no longer get me to 1000 yards consistently, I called Swarovski and inquired about repairs. They said send them in and they would get an estimate to repair... The got back to me and said all of the lenses would need to be replaced and that they could do that and 'make them like new' for $175. Sounded like a good deal for repairs and new lenses (the old ones were scratched, but they ranged fine with the scratches for years).
When I got them back the new lenses looked awesome, but they wouldn't range past 700 yards even under ideal conditions. So back they went again, only this time it was hunting season. When I asked if they could expedite repairs, they just sent me a loaner unit to use while I waited (another Laser Guide 8 x 30). Well, the loaner unit barely gets past 1000 yards and I don't think it has read anything further than 1100 yards for me. Had to push the button 20+ times to get one reading on the elk I shot last week at 727 yards.
Now I'm beginning to wonder if my original unit was an exception, verses the norm... I guess I'll see how they work when I get them back.
I really didn't like being without a rangefinder for a couple weekends of hunting season (before getting the loaner). It made all of my high-end longrange rifles/optics and 1000's of rounds per year of practice about as useful as having a Winchester 30-30 topped with a 3 x 9 Redfield. Based on lots of research and getting time behind numerous rangefinders while at the Snipers Hide Cup this Spring, I pulled the trigger on a set of Steiner Military 8 x 30 range-finding binoculars. The Swaro Laser Guide will become my back-up unit and coyote hunting rangefinder.