I own an older model, the Brunton Sherpa which I truly like because it's always on and the battery will last 1 year if I leave it on BAR mode. Of all the things we need, it does not measure humidity which is not a big deal with in 1000 yards or so. Another thing I like is the size. very reliable and has been all over with me.
The one you're looking at is really awesome. It just about does it all. It's even a compass.
I also have a Skymaster that gives me humidity readings but it's bulkier, heavier I don't like as much. I think I would like to have the Brunton Adc Pro.