Definitely, if you're going to bother watching season 2, do a season 1 marathon and get up to speed. Just my .02¢.
Three weeks ago I spent 4-5 days and on NetFlix I watched the entire Season 1. I have seen nothing of Season 2 yet (though this morning I set up the DVR to record a couple shows on AMC this coming Sunday).
I quite enjoyed Season 1. And being in the marathon type of viewing it was addictive and very enjoyable. Sort of like Lost. While in Baghdad, Iraq I watched Lost Seasons 1-5 (about 6 shows per day). I did the same with Alias, Star Trek The Next Generation, Star Trek Voyager, Star Trek Deep Space Nine, Star Trek .... etc etc. There were like 12 TV series I watched like that.. something to help keep the sanity while over there.
Anyway; I loved the show. There were times when I was frustrated with things because I'd rather have seen the story or the character do something different.. but hey... if I want it different... I can write my own book and have it picked up and turned into a movie.
Wandering-Conversation-Translation-Summary: I thought Season 1 was good.