Stayed at Nina's apartment mid October - late November. First off the location is amazing! Five/ten minute walk to third street promenade/pier, restaurants, 20 minutes to a grocery store, walkable to the subway stop and buses if you want to explore other areas and don't have a car. If you do have a car, street parking was easy and there was only one time I wasn't able to find a parking spot directly in front of the apartment - and even then I parked only a block away. The space itself was very large for one person with a nice sized bedroom, good water pressure in the shower, and a good sized dining table if you need to work from home.
Only drawbacks I would say is that there were some windows that wouldn't catch. It wasn't a problem in October/November given how cool it is being so near the water, but perhaps something that may be an issue in warmer months. There are also four other units around you, and you can hear some of what is going on around you. I'm from New York and used to apartment living so it wasn't a big deal, but perhaps something that might be more of an issue for a light sleeper and/or something to keep in mind if you are constantly on work calls and want to be conscious of your neighbors.
Overall I do think the location and space itself more than makeup for anything and would 100% book again if I end up working from SoCal again!