My sister and I had a great time at Martha's place in Maui - great location, nice pool area, and right on the beach. We saw a few turtles out in the water and even right on the beach when we were walking in the morning!
The one thing I want to point out to other potential guests: only the bedroom has air conditioning, so it was quite warm in the rest of the apartment. Opening windows and balcony door helped let in a sea breeze, but it would not have been comfortable to sleep in the living room at night, too warm. So while there are 2 beds, only the bed in the bedroom had cool air at night. My sister and I were fine sharing a bed and closing ourselves in to the "cold room" at night, but I would not have been comfortable bringing my father, for example, because he runs hot and would not have been pleased with the temperature in the rest of the apartment.
Other than that it was a great place to stay, very clean and walking distance to a grocery store, coffee shop, and many restaurants. Overall I highly recommend this place - great value!