"When we were there we were told to avoid the areas "off the beaten path" especially after dark."

I would think that advice would apply to most major cities, not only here in the United States, but around the World.

As to...

"when I was there I felt comfortable"

Exactly! There is really no reason why you should not feel as comfortable here, as in any other major city. For those who feel otherwise, stay home! Andy - Las Vegas