I stayed for 2 nights. Overall i would pay for it again, though my room was in need of some tlc. This may not be the case with other rooms.
Pros: location is central Khao Lak, but a bit of a walk to the beach. Atm and stores right outside the front doors. Staff was kind, but could have done more. Massage parlor at the bottom of the stairs.
Cons: my safe key had been lost by previous customer and I was not helped any farther then that. Construction or loud neighbors behind building. Thin walls. The A/c in my room was ancient and didn't actually change setting when I used the remote. It seemed to be stuck in high mode, which meant turning it off and on throughout the night when I woke up freezing cold. The springs in my twin stiff mattress helped to wake me up as well.
Again, this was just my experience with one room. There aren't many affordable places in khao Lak ($100/night is the average).
Ask to see the room before booking if possible.