I think it depends on the kind of person that you are. If you are looking for a soul-searching trip, then travelling alone can prove to be an immensely eye-opening experience and can help you change for the better. You can enjoy a few days of complete bliss, slash down your stress levels if any. It will also boost your confidence and courageous side and will help you make more brave decisions in life that you were not able to do so before.
One downside of travelling alone could be safety and security, you can never be too cautious, while on your own. So, research the country and it's no-go places before booking a trip.