I binged read this over the course of a day. I love the positive vibes this story set, and it was nice to go through a music story that was all about comfort and touching people's hearts rather than the dramas of the music industry. From Roh's friendship with Jingsu, getting approval from his parents, to recruiting his session members (and extra gratified when the bassist turned out to the the hyung who helped him out in the beginning). I love that Roh helps out the little guys, like commissioning little known artists for HALO's cover art, or doing random busking sessions.
Also Halo and Roh fanbase is extremely hilarious, the former with their cultish sentiments and the latter calling Roh a devil but also can't help but love how adorably childish he can be.