Ok my initial thoughts on season 2 was that I did not like it much. I had absolutely loved season 1 and had actually binge watched it in 2 days (I started watching when 11 of the episodes had already been released) and then re-watched it several times later. In season 1 I had zero expectations while in season 2 I was expecting many things like the winter garden couple getting married, Ik-jun and Song-hwa getting together, Seok-hyeong reciprocating Min-ha's feelings, Jun-wan and Ik-sun to also get married or atleast engaged, and many more antics from the 2 best duos - Rosa and Jong su and the twins Yun-bok and Hong-do.
While some of these things did come true, some did not. And many loose ends were left without giving us proper closure. Regardless this season got better with each passing episodes. I liked the music in this season much better than season 1. The emotional development of many characters was very good. There were many heart wrenching moments as well especially that last episode which made me almost tear up.
The writers definitely tried to keep the magic of the previous season. This failed in some instances like the first fight scene between Ik-jun and Jun wan or when Ik jun was reciting the exam hall announcement after listening to classical music. It was funny but it seemed like the writers were just repackaging the same old content and giving it to us.
But despite that many scenes were genuinely funny. I'll just list down my most favorite moments -
1. Kim Jun-wan and Do Jae-hak duo (if they weren't both straight and in relationships, I would have shipped them)
2. Chu-Bear couple (Seok-Hyeong and Min-ha were hands down my most anticipated couple this season)
3. Ik-Jun and Song-hwa (unlike many I did not ship them very hard. They were good either way, whether they stay friends or become lovers. But I did like them together in the end)
4. Winter garden couple connecting emotionally (while in season 1 their relationship was highly anticipated, in season 2 it became very evident that while they liked each other for their personalities, they actually did not know much about each other. In this season their personal issues were brought to light especially Gyeo-ul's background and I loved how they tackled the issues together and became even closer)
So yes you should definitely watch this season. While it is not as good as season 1, it is 10 times better than any of the other series currently airing.