This was my first trip to Mission Beach. Neither the beach nor boardwalk was ever crowded. Very laid-back vibe to the area. I walked or used Uber or Lyft and got around quickly and easily. BUT....if you like to sleep in, you better bring earplugs because the passenger jets start flying out of Lindbergh at 0630 and every 5 minutes or so for over an hour. You can't sleep through that noise without earplugs.
The condo was super clean and well-appointed. I never used any of the appliances but there is nothing you need that isn't provided. Great Airbnb.