A group of us FTers went out to ADK last summer and found it surprisingly fascinating. Note that with only two flights a week, you have to go either for one hour or three days (we did the latter, obviously). Here's a trip report from one of our group:
http://alphaeagle.com/2012/08/adak-trip-report/
Despite having been to BRW, OTZ, AIN, BET, ANI, and other remote Alaskan outposts, I felt the farthest from normal life out in ADK.
It takes almost as long to fly there from ANC as to fly from SEA to ANC, and in fact, it's closer to CTS than to SEA.
It's also about the best bang for your buck for redeeming an award, as it's normally a $1,000 round-trip flight from ANC.
Just throwing that out there.