While I think Tokai-sensei is great as a character, Amagi-sense is even greater! He brings a nice air and more dynamic to the inter-character relationship, especially with Sera. I prefer this season's medical aspect due to they give more clear explanation on why Amagi-sensei's ope technique is marvelous.
However, while I am glad having Neko-chan background story, the other characters that supposed to be the regular one often missing and has no significancy (for example, Hanabusa and the Korean intern). And, the money laundry story wheer Amagi-sensei suddenly has relationship with police investigator is just so weird. Finally, the finale episode is so annoying because, again, they keep talking and talking, when the time to operate is limited. However, O gotta say I enjoy this season more than the first one.