To be honest, I think it was a pretty boring episode the entire time, but in the end a lot of interesting things happened, it ended up to be pretty good after all.
First of all, Lisbon now has a new nemisis in Volker. I liked him, and I hope (and am pretty positive) that he will come back.
Secondly, of course, the final scene where Jane runs into Robert Kirkland. I don't think he's Red John, but I'm sure he is connected to him. To be honest, I think it would be disappointing if Robert turns out to be Red John. We have been waiting to finally see Red John for 5 seasons, and then they just randomly throw him in the show.
I hope that there will be a spectacular finale to this season in which we can finally see Red John.