I recently acquired the Revic BR4. Having owned/used several RF's(BR2, Sig 2400, Terrapin's, Leica's), IMO, it is an outstanding ballistic rangefinder! The laser pics up non-reflective targets/game out to 2000 yards with the ease and speed that my others range at <500 yards…With a "single" push of the button. As to wind, near/far, temperature overrides, and other time critical controls used in a hunting situation, it's very fast and easy with the on-board controls. The ballistic calculator, whether programmed for med-LR, or ELR applications is nuts on, and duplicates the outputs of my AB based devices to within .25MOA given the same inputs/conditions. As to changing rifle profiles in the field, I doubt you will find a device that is faster or easier. A small detail, but I'm still on my original battery. I would have gone through one or two battteries with any of my other RF's with comparable use! Too soon to tell but I'm hopeful the BR4 is as consistent and reliable as my 10+ year old BR2 has been…A distinguishing difference compared to other RF's I have owned.
IMO, it's well worth a serious look.