The shows I like watching now are usually high tension, so watching hello me was a good way to break up the tension. Every episode was fun to watch and there was never a day when I told myself I don't think I want to watch it because of how addictive it is.
All of the main/recurring cast members have their own edge and could have their own spinoffs based on their adventures but I like how they are all in one drama and the focus is today's bahn Hani meeting bahn Hani from 20 years ago. This is good because we get to see retro scenes and the cast interact with the same person in different forms.