Tim's place is one of the best deals on the island. It is a nice two bedroom apartment with a lot of space and all the accessories. It is in a gated community with access (by reservation) to two swimming pools and a tennis court. We used both a lot during our one month stay. One does need a car to get around but given the price for the apartment, the total expense (car rental + apartment) is lower than one bedroom apartment in other parts of the island, such as Waikiki or windward side of the island. During our one month vacation we explored other parts of the island. It takes about 1 hr drive to Waikiki, North Shore, windward side. Tim is also very responsive and can provide a lot of tips about the area.
There are several nice beaches in the area. The closest one has waves and our 11 year old child liked it a lot. There is also a calm beach in Waianae for smaller kids. We also went a few times to Ko Olina beach.
There are several good hikes in the area. I especially liked Kea'au middle ridge which is a little challenging but has good views from the ridge. Kaena point trail is an excellent family hike. There are more hikes father away near Honolulu and on the windward side. My favorite hike was Olomana trail.
There are not many restaurants in the area but we found that Tamura supermarket (5-10 min drive) had a great variety of fresh poke for a good price. Almost everyday, we would buy poke for lunch and would eat it either at a beach or in the apartment. I also like the beach house restaurant in Wainae due to the good views of the ocean.