Bushnells work fine for the money and give you a direct ballistic line taking angle into account is all you need. I'm not sure what their guarantee is, doesn't matter you won't need it, built tough.
There's a thing called law of diminishing returns, none more so with this gear, they're a good starting point without tying up too much.
Less crap with you the better than swapping back and forwards between rangefinders and binos when you should just be glassing all the time.
When you glass moving through area's it's easy to quickly take a range so if something pops up you already have a general idea of distance as can often be different either way to what you think it is.
Get a chest rig for them so nice and handy.
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