Where to start...
First off, the house is in great condition, with everything you could possibly need. Even multiple crockpots. If you don't have it, the owner will get it for you. Every appliance you could want or need is there, including a washer/dryer and a hot tub. There are multiple TVs with Dish Network and WiFi provided so you can stay connected our your vacation. The house is located in a quiet valley with fantastic views and you'll have complete privacy. It also has tons of space. If someone in your party is disabled or has poor mobility, there's a first-floor bedroom and bathroom which is reachable with no stairs, and a spacious living room (the kitchen is upstairs however).
Second, the surrounding area is great. Vermont is ridiculously beautiful, and the Waitsfield area offers a surprising number of attractions and good food. You have Waterbury, Montpelier, and Burlington just a hop, skip and a jump away. You will not get bored and the time will fly by, with the guesthouse being a perfect home base for your forays.
The strongest thing I could say about my experience here is that before my family and I left, we were already talking about coming back next year.