I've been twice. Saw a great moose on the other side of the river that I couldn't figure out how to get across. He was probably 200 yards away and just laying there watching me, which really made it frustrating. But I had to walk away. Then my buddy and I saw two large bulls fitting down in a big bowl. We tried to get close enough for a shot, but lost them, and then got lost and spent the night in the bush. I got a nice caribou on that trip, he didn't get anything because he wanted a bigger caribou and let them pass for three days, then we didn't see any more. That was in the Mulchatna area.
The other time was with a different buddy who just wanted a black bear. We went out of Aniak and though that it was an area with a lot of moose. We rented a canoe and spent ten days rowing all over the place. Every day we would see at least a cow moose, but never a bull big enough to shoot. The outfitter couldn't see any bulls flying around our camp, so he relocated us to another area that he had seen a nice bull, but we never found him. We also saw a few black bears, but never close enough to shoot, or that were out in the open long enough to get off a shot.
I'm still wanting a moose, just haven't decided where to try next time. Prices have also gotten ridiculous, so that's also holding me back. And worst of all, my wife wants to come along. She has no idea how bad it is there, and I'm really not wanting to deal with her being cold, wet, uncomfortable and eaten alive by mosquitoes. I also had diarrhea the entire time on the second trip because the water was full of beavers and nothing we did to purify it helped. Boiling and dropping pills into it just made it taste bad.