We thoroughly enjoyed our 4-week stay in December. For one week, my brother joined us. We all loved the view, the quiet, and we loved the king bed in the master. Drawbacks, though:
The second bedroom upstairs has a full size bed. A couple would likely not be comfortable for many nights.
The lower "bedroom" is actually best described as a fantastic TV room. The set is quite large, with good sound. Loved the ability to watch DISH, Neflix and Amazon Prime (using our personal subscription logins for the latter two). Streaming was great because the wifi runs at about 40 Mbps!
Sadly, the cushions on the futon down there were not good at all and were downright painful after 2 hours. Friends who tried sleeping in this futon bed previously said it was VERY uncomfortable.
Everyone loved the propane heater upstairs. Due to septic system restrictions, one does have to use care in avoiding the processing of too much water in a day. Would be almost impossible for three couples to shower every day.
If it were my place, I would stop describing it as 3 bedrooms, sleeps 6, and go with 2 bedrooms.... and maybe upgrade to a queen in the second bedroom.
The dishwasher seems to be on its last legs, sadly. But we LOVED the stovetop, the vent fan, and the refrigerator. We did a lot of cooking!
By the end of our stay, the shower drains were extremely slow to drain.
Don't get us wrong -- we LOVE this place and plan on returning.