First off, you should get contact info for several clients who have hunted with the outfitter in question. And contact them and ask if they enjoyed the experience. If the outfitter will not provide reference info it may be a sign he is not top drawer.
When I was in NFL we traveled up the west side one evening and saw about 19 moose. The next day we drove back down and saw 22.
Hope you get a moose but more important hope you have a great time hunting there.