We stayed for three nights at Dolphin Beach. Our room faced the garden not the sea and at first I thought it might be noisy because of the road in front of the hotel. However, that was nog the case. The room itself is very comfortable and quiet (and huge!)
The staff are extremely friendly, best I've experienced so far! They can arrange all kinds of trips, we went on a snorkeling day trip, but they also offer trips to visit the rice fields near the mountains and, obviously, to see the dolphins in the morning.
We also really enjoyed the australian breakfast, with cereal, bacon, eggs, toast, fruit... Certainly enough to keep you going untill lunch :-)
If you are in Lovina and looking for a reasonably priced, clean and friendly hotel, I definitely recommend Dolphin Beach!