Just finished watching the second season!
I have to admit I wasn't really planning on watching it at all...I knew that it was going to air at some point but I never sought it out. Then a few weeks ago I read a spoiler in this thread about the Christmas special (mainly the ending) and I was like, "Awwww YEAH!" Talk about payoff.
So the second season it was!
I'm going to spoiler the rest just in case. 
Spoiler
I really enjoyed the second season. I found all the characters MUCH less tiresome than the first season, even Mrs. O'Brian. The whole season seemed to flow much better without the whole sabotage storyline. Edith was nice too...I was rooting for her, and I was happy when she found her niche. I hope that the next season develops her character more and gives her some more action, since she will be the only daughter left unattached.
The new characters were good. I liked Ethel, and I really liked Lavinia. I know that Mary and Matthew are fated for each other, but she was so nice...I wish she could have had a better resolution; she deserved something better than the martyr's death. :p
I thought that the Anna/Bates storyline was REALLY irking; it just dragged on way too long. They're a nice couple but not one I'm willing to agonize over so much for. Yeah, they kind of hammered that story too much.
Given the ending of this current season, how do you think the next season will progress?
Spoiler
I think it might take awhile to actually get Mary and Matthew to the alter, and I HOPE it's not too long and drawn out...they just need to get over it and get married. Although I'd miss seeing the lead-up, I'd almost not mind if the new season opened on their wedding day!