Sergio's place is great. If you are looking for a place VERY close to downtown San Diego, within ten minutes or so of nearly every major amenity, this is the house you want to stay out. It was absolutely perfect for our little three day trip to explore San Diego.
I've seen a few earlier reviews mention that the area around the house is kind of sketchy. I mean, it is, but it isn't. If you've ever spent time in a major city on the west coast, I'm sure you've seen lots of different homeless encampments. Seattle has them, San Francisco has them, Los Angeles has them. And yes, sure enough, San Diego has them. So I can see why people who aren't used to seeing that would be a little spooked when they're approaching the house, and they're driving right through some really impoverished ones. But rest assured that the minute you get out of the homeless areas, you are in a pretty average middle class Mexican neighborhood. We never felt unsafe for a minute at Sergio's house, or in the neighborhood. In fact, it really just made us hungry for some local authentic Mexican food (of which there is plenty). So I would just take the "it's in a bad area" reviews with a grain of salt. If you're used to big cities at all, it won't be anything unusual for you. I personally really liked the street that the house was located on. And again, I was with my wife and two kids, and we never felt unsafe in the house for a second.
I only have one minor nitpick with the house, and that was that both nights we were there, the internet went out. So we lost both the Wifi, as well as the Netflix. I don't know if this is typical for the area at night, I suspect maybe it is and that the servers just tend to get overloaded when it's nighttime and everyone is using the internet. But it wasn't really that big a gripe. And I'm not sure Sergio has much control over that kind of stuff, anyway. But just an FYI that if you need the wifi at night, it might not always be working for you.
Other than that, the house was sparkling clean, the beds were soft, there are two different A/C units in the house, and the shower was great. It was pretty much the perfect place to stay if you are visiting San Diego. Thank you for hosting us, Sergio!