To start with, this review might be biased because this is KNG show.
I have been following this season from the start, alongwith the comments for each episode. I could see that people felt dismayed because this season is bang opposite of first one:
1. This one is not at all emotionally driven
2. This one has too much "over the top" (i guess) comedy, I will call it silly comedy, while first season had more mature comedy.
3. The plot was quite basic with not so strong motive.
4. As a consequence, the acting might feel over dramatic.
But, as someone who has seen both seasons, I found 1st season more interesting but too long and slow burny for me to rewatch entirely- I would rather prefer last 5 episodes and enjoy the Chemistry of "michi-gang". But, in contrast to the first one, I would run through the 2nd season because it has these loud, extravagant and really silly comic scenes that show all the characters go real mad. This is something I have rarely seen in korean content. Also, since I have also watched Indian comedy movies, so I am kind of used to watching this type of silly and "cringe" (they said) comedy.
I smiled a lot watching this season, and most of all, I was happy to see KNG's character alive in the end.
Yes, the strongest point for rewatch
Period.