So I started watching Chuck a good month or two ago, and I just started season 3.
Chuck Bartowski himself is a pretty lovable dork (even it is just playing it a bit), and apart from him whining, I like him. Sarah frustrates me however, because she goes between being all professional to being in love with Chuck, but it's the intent of the writers, so it's good. But moreover, I get frustrated because they're cute together and skinny love just gets to me. It also seems like Adam Baldwin plays the same tough-guy character in everything I've seen him in, not that I mind though.
One thing I could do without is the Buy More hijinks. I get that comic relief is important, but I'm just getting a little irritated because I really like the main story, and I wish I could see more of that. You can't understand my excitement when, at the end of Season 2, he quits the Buy More. I was all: "FUCK YEAH, SPY SHIT ALL THE TIME", and my deception in season 3. Also, what was that with Emmett? As much as I agree, annoying character, but it's a very odd way for him to go out.
But really, I like where the show is headed, and that Chuck isn't just the Intersect, but also a real spy, with actual skills, be it Intersect-related or not. With the addition of Captain Awesome in on the whole spy thing, and that helps out, I'd like to see Ellie or Morgan sort of do the same thing. I also want to see how the Chuck and Sarah back-and-forth pans out, and hope that they stop toying around and just goddamn make love already.