I got the H32 because I didn't have any interest in the cockamamie ranging scale off the side of the H36.
I bought the inverted version with intent to mount it Spotter 45/60 style but as yet haven't gotten around to it.
In practice, I love it. I actually prefer the grid up above rather than below, and for milling targets, nothing else I've ever used compares. It allows me to judge sizes down to ~.050 mrad, which means I often come within 2-3 yards of true distance even for targets at 700-800 yards.
Haven't used the H36, but have ZERO complaints with the H32.