Our room was very nice and clean. There is no AC but you are able to open the windows and it was always a good/cool temperature at night. AC is not needed. The breakfast that is included in the morning is also very good as well. The owner is very passionate about his place and you can tell when you speak to him. Very intelligent and informative. We paid extra for the permaculture tour and I highly recommend it. We toured Monteverde Cloud Forest, but honestly the trails at the hotel nature reserve are better in my opinion... and included with your stay. It has one of the MOST beautiful lookout points that you do not want to miss.
The only cons that I had:
There is a coffee pot in the room, but no coffee. So that was a little weird. Also, no bottles filled with water or a place to refill your bottles of water except for the sink.
There is a sign in the restaurant bathroom that says do not flush toilet paper, and to hold down the handle for 5 seconds for it to fully flush. Which is fine, except I didn't see that until the 3rd day, as the sign is not in the bathroom of the hotel room. It would help if the sign was also in the hotel rooms so that the guests were informed.
All in all I definitely recommend this stay.