The LED-driven display is too dim and difficult to read on even moderately bright days. The LCD display used in the Bushnell 1500 rangefinders, which is easy to read under all conditions (except perhaps the dark of night) is superior. Even though the LCD thin film would likely compromise the optical clarity of the binocular vs. the LED projected image, Bushnell should have used the high contrast LCD display in the Fusion too. The Fusion optics aren't going to rival top bin euro optics or even a pair of Gold Rings, regardless.
Unlike the 1500, the Fusion is incapable of ranging at close range. I don't know where it signs off, but it's somewhere under 20 yards or so. My 1500 can range distances down to 5 yards, which may not be important to some users.
I'm looking forward to not having two optical devices around my neck banging against each other during hunts, but the rangefinder performance is disappointing. Most people seem to be critical of the optical performance of the Fusion, but I think discerning the optical differences between most mid-tier and up binoculars is splitting hairs. However, when it comes to a difficult ranging situation, you either get a reading or you don't (or you get one and can't read the dim display).
Pros: Only a single weight around your neck when hunting!
Cons: Rangefinder difficult to read in sunlight. Overall performance inferior to 1500.
This review was written in the old system and had content requirements that are different than reviews written today.