I had a wonderful stay at Andrew's apartment. It's a stone's throw away from the beach on a cute street with great coffee shops and restaurants. A dedicated garaged parking spot, free laundry, and an Amazon Fire TV Stick all made for nice additions to the experience. The bed is super comfortable—it took me about a minute each night to fall asleep. One thing to note: I was in the apartment on a Friday night and there's a relatively noisy bar pretty close to the bedroom. I didn't have trouble falling asleep, but if noise sensitivity is an issue for you I think it's important to know this (keep in mind I was there for a week and the only noisy night was Friday).
If you're going to Hermosa Beach, I couldn't recommend a better place to stay. I'd absolutely stay again!