My wife and I are midway through season 5 of Weeds, and it gets a big thumbs-up. It's a little offputting that they kind of take the premise and pitch it out the window at the end of season 3, but it stays entertaining, so whatever.

(That being said, it does take a while to get going again in season 4. But yeah, once said Mexican druglord shows up, that's where it gets good again.)