The city of Jacksonville used to be the worst in crime rates but overall has gotten better over the years and during that time I've felt safer and safer knowing law enforcement is doing their job better.
Jacksonville is a city that you go to for the beaches but then get real tired of the area and the overall living experience that you obtain from moving here. Compared to Orlando it has really nothing to offer or any negatives other than crime.
We have not had any crime issues in our neighborhood. It is very quiet and all of the neighbors look out for eachother.