I can tell you what isn't worth a crap
As just a bino they are pretty good. Small... good optics.
The rangefinder is accurate enough but it's only good out to about 550 yards. They claim over 1000 yards to a "reflective" target... lot of good that does... I guess I could run over there and stick some reflective tape on the animal and then run back and range it... Battery life is terrible. You get maybe a couple of dozen ranges before low battery kicks in. It uses CR123's and those are pricey...