Never tried a Santiam in the field. Looked through one in the store and it was clear but that’s not a fair test.
I had an old 20x50 gold ring that was incredible until it broke. They replaced it with the Gold ring 15-30x50. That was the best spotter I have used in that size. I have a swaro now and still miss that little sucker for a pack scope.
Never been a fan of their binos, but all of my rifles wear leupold scopes. I think the spotters seems of equal quality to their high end rifle scope offerings.