Friendly people, nice surroundings, built into the mountainside. We stayed in the Petanu villa which has 2 bedrooms (no living room) but a plunge pool and patio (w/daybed) that acts like a living room. 1 bathroom that was open to the main room but it had a beautiful large tub. The spa is nice, right next to the river so you can hear the water but it is pretty far down the mountain so walking back up afterwards can undo all the relaxation. There are 2 pools, the lap one is next to the spa, the regular one is also nice. Overpriced restaurant though. When I went, the road to the hotel still hadn''t been paved so it was a pretty bumby 15 minute drive to the center of Ubud but it''s supposed to be paved sometime this year.
http://www.indo.com/hotels/natura/