The location between Mission Bay and Mission Beach was superb! We thought we'd spend more time on the beach side, but it was pretty chilly/windy so we ended up at the Bay more, which was better for our toddler anyway since it has calmer waters. Like mentioned in other reviews, the place is pretty small, but it worked for our family of 3. The floorboards also seemed really thin so it's pretty noisy whenever the neighbors are walking around, which was annoying when they woke up at 5:30am... The host was very responsive and even swung by to drop off a high chair and replacement battery for the smoke detector.
Some notes: since the parking spot is in front of the unit, you have to turn in before Vanitie Ct (after Toulon Ct) otherwise you'll overshoot it; skating/biking to Belmont Park is much easier along the beach than the Bay, but there is a mini hill to get up to the beach; sunrises over the Bay and sunsets at the beach are gorgeous; people also aren't really wearing masks in this area but hopefully the fresh air is keeping everyone safe!