Corona can be very nice. Parts are beautiful other areas, keep your garage locked. I rented a house in a nicer area a few years ago for just a few months. Someone used their garage door opener and opened my garage and stole my toolbox.
Just live a little more inward and keep things locked... But,
I still love Corona and would go back in a heart beat if I could. That 4pm breeze everyday is so nice. The climate is always nice. The backyard is actual year round living space. Lots of outdoor entertaining. And the mountains surround Corona on all sides - Views can be just wonderful.