We had and aboslutely wonderful stay at Rebecca and Steve's apartment on Waiheke Island. I can not recommend this listing enough. The apartment has an open concept floor plan with lots of room in the kitchen/living room area. We stayed there with another couple (4 people total) and we had two more friends visit for the day and there was plenty of room. My favorite part of the apartment was the outside deck with a spectacular view of Palm beach. The deck was actually bigger than I though it would be. It has a grill, a table with chairs, and plenty of extra room for lounging on the two large bean bags. We enjoyed the apartment so much that we cooked dinner on the grill both nights and ate in rather than going out to eat. Also, the apartment is located on the north side of the island and the back deck gets lots of afternoon/evening sunshine before sunset (huge plus in my book!).
The beach is a short walk down the hill, but if you want to get into town you would have to drive or call a cab. We ended up calling a cab to check out a couple of the wineries and had no issues. I wouldn't recommend riding bikes around the island because it's pretty hilly. The beach was beautiful and much less busy than the beach located near the town of Oneroa.
I recommend this listing to anyone looking to spend some quality time relaxing on Waiheke Island : )