Our family of four just got home from an eight-day stay at Bob's place and can't say enough about how great it was. The cottage made a great home base for exploring the island, and we came home every afternoon and went swimming at Kailua Beach, which turned out to be our kids' favorite beach of all the ones we visited on the island.
The place was very clean and well equipped with everything we needed, and we especially appreciated having a washer and dryer, full-sized fridge, barbecue, and keypad entry (so we didn't have to bring keys to the beach). The check-out process was also super simple compared to other vacation rentals we have had in years past.
In addition to being right next to the beach, there is a nice park and you can walk through the park from Bob's place to the other end of the park, where you will find a little grocery store and deli. I walked over there every morning for coffee and then walked back either through the park or along the beach. We really enjoyed staying there and will definitely rent it again if we ever return to Oahu.