I have a Bushnell Legend 1200 Arc. It's not the best unit in the world, some Leica or Swarovski is, I think, but it's quite good.
I did a lot of research on these things, and what I decided my criteria for buying one was, whatever I wanted to be able to range under poor conditions, I had to buy something capable of doing at least 2x that far under optimal conditions.
Mine is rated to 1200 yards, and has 6x magnification. The furthest thing I have ranged, early one morning under optimal light, was a rock formation at 1350. The furtherest I have ranged an animal was a Coues whitetail at 1120. It actually probably ranged the grass hillside he was grazing on, because normally, it peters out past 700 on animals. It was on a tripod for both of those, btw. Handheld, you have to try several times, and somehow hold it very still.
But, this past Saturday morning, handheld ranging on some Coues does was 550 +/- as they moved around, no struggle.
I don't really have much experience with other rangefinders. I wanted one, did research, saved up, and bought the best I could afford. Prices on them really range widely. Shop around, you may be surprised at what you can get that will be within your budget, if you're not in a hurry and willing to buy used.