Detroit is not as bad as everyone makes it out to be. True, it is not a great city like CHicago (for Midwest flair), or NYC, Philly, etc. However, it does have its moments.
As for safety: Typically not a problem. Granted, it is the most dangerous city in America; however, you are not going to walk down a dark alley in Detroit, Chicago, Atlanta, NY, Phily, etc. If you are safe, it is a very safe city.
Now, if they would ever catch those two dudes that are responsible for the majority of crimes in the town, or if people would stop sitting on their porch "mindin' my own bidness", things would change in terms of the danger level.
As for HFH..cannot comment on it as I am not there; however, it is not the hospital with the highest acuity according to Detroit EMS stats.