We have just spent 3 nights at Oka Bungalo 7 and we were very impressed for the price we paid. I had a few reservations about staying mainly because it was so cheap, we were quite surprised when we checked in, fantastic location, very clean, amazing ocean views, friendly staff. We were lucky to have villa no 1 which has the least amount of stairs to climb, that is one downfall of staying on the cliff in Nusa Lembogan you can not bypass stairs but if you want amazing views and being so close to the surf this is where you stay. The rooms are very basic, the bed has a mossie net around it there is airconditioning, hot water and baloncony's to sit and watch the boats go past. There are 2 fantastic Warungs just at the front door and staff can organise bike hire for you at a fantastic price. I must say we did not have breakfast at the bungalow as we were wanting to experience as many restaurants as we could in 3 days.
I would recommend Oka 7 but just be prepared for very basic.