+100 to what everyone's said here. The outside treehouse area is spectacular and unique as described in all the other reviews. We unfortunately had to cut our 2-night stay short because I have a chemical sensitivity and I had a reaction to fragrances in the bedroom. That was a bummer since the booking was pricey ($345/nt after all the fees) but David was really understanding about it and offered a small partial refund to make up for the inconvenience. He was very kind and prompt when communicating with us throughout.
I wish there were sleeping bags so I could have slept outside with fresh fragrance-free air (and omg under the twinkle lights would be so magical). That would be a super cool accessibility modification that other folks would probably like too— maybe an idea for the host to try in the future to make this place even more epic. Or maybe try making the indoor space as whimsical and fresh-air-filled as the outdoor space somehow? I dunno, just ideas. :) With minor modifications we would definitely want to stay here again, and we would definitely recommend it to anyone who's going to San Jose.
P.s. Two small heads ups: the sauna's not working right now (but the hot tub is lovely). And the bed has a super squishy topper on it which I think is fine but folks with back issues might not get the back support they need.
If you're going to San Jose, definitely check this place out. It is something you'll remember for a long time. :)