There is more than just print string, you can add breakpoints in nodes and it works perfectly. I have 0 trouble debugging.
If you are a complete noob that knows 0 programming in C++ then Unreal is not going to be easy to develop for. BUT if you do have a basic knowledge of C++ then Unreal is definitely easy to learn.
unity has it’s own learning curve which has been made easier overall but not in every way. But I feel Unreal is amazing and the amount of info out there is astounding. I was able to learn unreal engine in less than a month and within 6 months I have already finished the full featured alpha with c++ and blueprints combined. for my game and uploaded to google store.