This place has a good central location if you need to be in Santa Monica, but you would definitely be compromising peace and quiet in exchange. The blinds don't block out the street lights well, and there's practically no sound insulation at all in the unit. You'll be able to hear conversations from people walking down third street promenade, as well as loud music throughout the whole day on weekends and some evenings until pretty late at night (The music plays non-stop on weekends). There's also street cleaning on certain mornings (starting as early as 5AM).
The hosts were nice, and had dropped off some earplugs for me, but it was not very helpful in blocking out the street noise.
There were the bare minimums in terms of other amenities (small bottles of shampoo and conditioner), and a few hangers in the closet. The swivel chair was kind of broken (it wasn't stable to be sat on), and the closet was also half-occupied with cleaning supplies.
Overall, good location but wouldn't recommend for long-term stays especially if you value peace and quiet.