My husband and I stayed here for a month, and we had a really wonderful time. We loved the quiet location away from the business of other parts of O'ahu while still having quick access to a lot of awesome places, and Larry and Laura are so helpful, kind, and considerate.
The apartment itself was very clean, quiet, and well equipped. The kitchen had everything to make meals -- pots and pans, a toaster, a two-burner cooktop, measuring cups/spoons, etc. There was plenty of space for the two of us for the month, and Larry and Laura were very quiet above us; we only heard them a handful of times, and it was nothing loud or prolonged. I only mention this because I'm a very light sleeper and was worried about being in a basement, so, if you're sensitive to noises, too, I just wanted to say not to worry: it's sensitive-sleeper approved. The only noises we heard that were a little loud were the neighbors' sheep and roosters, so do be prepared to hear the animals once the sun comes up.
My husband was working remotely and just worked at the big table by the front door and left the door open for that beautiful breeze and view. He didn't have any issues with the internet or connectivity, and the house and neighborhood are quiet enough that there was never any distraction.
I got to do the fun stuff during the day and ended up spending a lot of time at Kokololio Beach (a 10-15 minute drive north) and up near Kahuku (a 20-minute drive north). Kokololio has a bit of a buffer between the highway and the beach, so it was a lot quieter than some of the other beaches nearby, and in the month we stayed, I only ever saw the beach particularly busy maybe 2 or 3 times, and all of those times were on a Saturday; it was never busy during the week. Kahuku has a ton of awesome restaurants and food trucks (Raised By the Waves was our favorite), so it's a fun place to check out. Punalu'u Stream Beach is only a 5-10 minute walk from Larry and Laura's, and it's good for a swim in the ocean, but it's also right next to the highway, so it isn't quite as quiet as other beaches, but it's awesome to have a place to go at such close proximity. My husband walked down to the Shrimp Shack across from the beach a few times during lunch and loved it. We did a few hikes nearby (Hau'ula Loop Trail was fun and quick), visited Kualoa Ranch (only a 15-minute drive south), and drove down to Kaneohe (about 45 minutes south) a few times, so there were a ton of things to do within a short drive.
Larry and Laura were both wonderful: very kind and courteous and definitely respectful of if people want to be sociable or not. They gave some great tips about places to try out, let us pick some of their delicious cherry tomatoes and grapefruit, and communication with them was always very quick and easy: I don't think I ever waited more than a minute or two to get a reply from Larry if I texted. If there had been any problems (which there weren't), Larry would have been very easy to contact.
If you're looking for a quiet home base with easy access to grocery stores, beaches, and tourist attractions, this is a great place to stay.