It is truly beautiful up there! I was shocked when I went up the first time in February a few years back and we took a friends' jet boat out on the lake and watched the skier's at Schweitzer Mountain. If that wasn't nice enough, we enjoyed a great Sunday Brunch at the CDA Resort overlooking the lake. They had a very nice bloody mary station (mine were virgin mary's) for brunch instead of just an omelet bar.
Make sure your ready for winter up there, but the summers are great!