Never been to SDF so that doesn't help much.
Never been mugged either, and I've lived in East San Diego, The South Side of Chicago, Newark, Subic Bay and Bangok. So not worried about that either. I almost welcome it, as long as its right before a trip so I don't have to go work (as long as I don't lose any teeth too)
Still, some idea of what rent would be downtown would be appreciated.