It's a really cute slice of life. Jun is kind and funny and genuinely cares for his friends, which is adorable. I love seeing his passion for acting every time, even though he's talented in multiple areas like music, sports, and arts—he always chooses acting above everything else. He uses his abilities a lot, but even without them, he is still a capable actor; they might give him a boost, though.
There are no real villains (just some bad people occasionally), and I like that because it makes the show relaxing. Jun has many connections with all the people he has acted with, leading to a diverse cast of characters from different countries. Sometimes it can be a bit overwhelming, but most of them have distinct personalities and aren't just bland.
I really like Jack and the Shadowman cast. The translation is a bit rough but still readable.
Spoiler:
*Over The Rainbow* is my favorite work of his. The story was incredible and deeply emotional. It was the first time a musical background played a crucial role in his work, and I appreciated how invested he was. Jason (the assistant) is so sassy, and I love it, and his father-son dynamic with Benjamin (the composer) is cute. The way he donated part of his salary to help children in situations similar to Gray's almost brought me to tears.