We spent a few days at this cabin, eight of us total. There was plenty of room for all of us and we really didn't have any trouble navigating the one bathroom situation. We were able to relatively easily travel to Charlevoix, Mackinac Island, and Traverse City. They weren't "close", but all within an hour which was fine by us.
Overall the place was pretty clean. We were able to enjoy both inside and outside quite a bit. The kitchen was a bit tight but we were able to cook a few meals for eight people. No problem. The living room was plenty big for all of us. The kids had plenty to do between the puzzles, games, and TV.
Only downside to me: I had a ton of food going on the propane grill only to have it run out about 15 minutes in. I was able to bring the food in the house to cook, but it was still a bummer. They really have thought of a lot, just would be nice to have a spare tank on-hand for future guests. Management was very responsive and the owner actually brought another tank that night around 9:30, so a lot of credit for that. The other thing...if you stay here make sure you screen capture/print the check-in/access instructions. I was not aware there was no service on the property, so I couldn't access the directions on the app. Had to drive back out to a main road to get service again.
Anyway, a great place to stay. Recommended!