Great location. If you're a walker, you can hit both Hermosa Beach as well as walk to the Manhattan Beach area too.
Read the description of the listing carefully - Emma does a great job stating what the rental is like, and it's important to see what is and is not available in this unit. There definitely is a lot of noise from neighboring people, including the cafe next door that usually keeps its door open and can get very loud in the mornings.
Also, make sure to bring shampoo, soap, and conditioner for the shower as none are provided.