My family just spent eight days at the Mission Beach condo, and really enjoyed it. The location could not be better, and the unit has lots of amenities that make it conducive to making meals and hanging out. We absolutely loved being so close to the beach!
We have a four-year-old and a one-year-old, and had no trouble with the stairs or the layout of the condo, but there are a few things parents would want to move or secure, such as a mirror leaning against the bathroom wall, and a few pointy objects that little hands could reach. Also, the parking situation is a challenge, but could be a whole lot worse and we got used to it. Our rental car was a Camry, and we had to park about 8 inches from a concrete wall (backing in so driver could exit) so that another car could fit beside us. If you are not that good at parking, or have a larger vehicle, you may need to consider something else. Most people will be fine, though!
Finally, if you or your children need a dark and quiet room to sleep in, you might want to look elsewhere or get a white noise app. The neighborhood is very densely populated, and because there is no air conditioning, you have to sleep with the windows open. That means it doesn’t get super dark (thanks to the streetlights + French doors), and you hear all the sounds of the neighborhood. Coming from a very warm climate with A/C everywhere, we were not used to this at all, and struggled with sleep. (To be clear, absolutely nothing about the condo was misrepresented in any way, we just did not think about what it would be like to sleep with open windows.)
Thanks again for being such great hosts!