First of all, let me start by saying that I had a good stay. Mira And Jesse is a great host. My emails and messages were always promptly replied. The location is indeed 2 blocks away from the beach! I walked my dogs along the beach every morning during my stay. The place is clean and exactly as described. Many great brunch places and grocery options within 1 mile.
So what didn't particularly work out for me? I do have to emphasize that reviews are always very subjective to personal life style and purposes. I moved to San Diego during the peak season for a job. While it's not that far away by distance, the traffic took its toll. It's also a popular vacation spot. During peak season (from Memorial day to Labor day), the area a little bit too crowded and rowdy for me.
With all that being said, I think it's a great place to be if you are vacating. The location didn't work out for me because of my special case.