It is generally pretty safe, but there are a few loiterers around at parts of Munster, dont approach them for any help and dont make it obvious that you are a tourist, thay try to fool you and pickpocket, so watch it.
watch out for mental bikers!!! They are everywhere! (the red bits of the pavement are cycling-area, so don't you dare to walk there!!!!;)
in case you're cycling yourself: watch out for mental taxi-/busdrivers!