We've stayed at SSR three times, leaving for number four in six days! We love it there
Never had a problem with theft, but, we don't drive there so we don't leave things in our car, and anything that I would be concerned with theft wise I put into the safe.
The only time I've had a check-in after 7p.m. is when I've arrived after 7p.m. This past June we arrived around 9:00 a.m., and they had a room ready for us.
I'd not heard about the mugging, but I walk to Downtown Disney almost every night during our trips, and the walkways that you are SUPPOSED to use are very well lit. That being said, there are walkways that you are not supposed to use after sunset - because they are dark. Also, I always walk with someone, usually my Mom or DH.
Now, that being said, our first trip to SSR in December '05 started out not that great, but once I talked to a manager and my
DVC rep, things got straightened out in a hurry. IF anything comes up, speak up right then, not when you get home. No flames please, but if something happens at your resort (and I'm not talking theft or mugging here, I'm talking rude front desk staff for example), tell management. If management doesn't care, contact DVC, because our rep sure cared! Both the manager and our rep were AWESOME, and really came through for us. It helps no one if you wait to compain until you get home.