We stayed in the Summer House for 4 nights in October, 2011. This was the most expensive of all the rooms at the inn. But, it was our 17th anniversary and the two of us thought we would treat ourselves.
This separate little house on the hill was roomy, but ill-equipped for any kind of food preparation, even though there was a kitchen with a fridge, microwave, full cutlery, dishwasher, and sink. Two plates and a few glasses were in the otherwise empty cupboards. No dish towel, dishwashing soap, dish cloth, or paper towels. Paper towels appeared after we were there for one full day already. There were no pots or pans that we could find. There was a closet to hang clothing, but there was absolutely no place to put your folded clothing - no drawers or cabinets. We had to lay out our clothing on the spare single bed.
The bed in the Summer House was not very comfortable. It is one of those fold-down Murphy beds, but permanently in the down position. There is a strange junky-looking home-made drinks bar (with fake leather trim) pushed up against a wall, presumably in storage. A fold-up cot is also "out there" in the middle of the room and has to be moved to the side. The place can easily look like a storage locker.
Bill provides a decent (almost) meatless egg breakfast (quiche), buffet-style, with weak coffee, and a great fruit salad, plus a nice baked sweet cake. Cereals and bread products are available. He also provides a wine bar with local wines free for guests in the late afternoon until 9:30 PM, a nice touch. However, be careful to clean your glass before you pour. You just might find someone else's lipstick on his "fresh" stemware. Incidentally, he forbids the drinking of red wine in your room. You will be subject to a penalty fee.
The wifi in the main house does not reach the Summer House. Bill said (unenthusiastically) that he might try to fix that in the future sometime.
For the price, I would expect to see a Hi-Def flat screen TV. Instead there was an old 25-in CRT with poor sound and a remote that did not work very well. There was HBO, however.
We did not try the whirlpool tub. The propane fireplace was cozy and warm.
The Summer House is equipped with two window air conditioners, noisy but effective. The problem was that there was only one remaining window that could be opened for fresh air at night. Tile floors throughout make for a clean look.
Be advised that it is at least a 60-70 minute drive on a twisty hilly road to reach Yosemite Valley. This ride can be fun if there is no traffic. But, mostly, you get frustrated behind crawlers, and the drive can easily take 80 minutes.
To reach King's Canyon or Sequoia NP, it will take 2.5 hours each way. Add another two hours to connect the two parks in one day.
Our bill was about $800 for the four nights, but there was a whopping $88 in extra fees (taxes, etc).
If you want to visit Yosemite, stay at the Ahwahnee hotel for two nights (same overall price) and save a lot of time and frustration.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC