We enjoyed our stay here very much! Yes, the guest "house" is attached to the owners main home, however if the owners were there, we did not see or hear them at all in the 7 days we were there. All windows near the pool had partitions and closed blinds.
The house was clean and we loved that it included beach towels, toys, chair, life jackets, etc. as did the pool. Everything we needed was available to us aside from food. The roosters did go off in the morning but we were always awake before they did so it never bothered us. There are some neighborhood dogs that barked like crazy but nothing the home owners can do about that and again, it was always after we woke. The beds/pillows were very comfortable.
Aki/Turtle Beach was a nice little neighborhood beach but we did not see any turtles out unfortunately.
The only downside for us was that the location was quite out of the way of basically everything we wanted to do on the island, which was again not the owners fault at all but I feel like it's something to mention.
All in all, it was a nice place and suited our needs!