The episodes were fun, and they've handled the Intercept 2.0 in a way so that Chuck hasn't turned into Neo/The One. So loveable Chuck is back and eventually Sarah and Casey, all back where they started.
The only thing is that these episodes hammered in the thing that bugs me about this show: the forced UST. Personally, I'm not really invested in if Chuck and Sarah get together. That's not why I watch the show. But the "OMG, WE MUST NOT GET TOGETHER BECAUSE OF OTHER PEOPLE/THE JOB/BEARS/THE INTERCEPT/CANDY CANES/ISSUES/SOMETHING NEW THIS WEEK" is very old. Okay, I might have made up a couple of those, but it's still forced UST. I scratch my head at writers sometimes.
So far the forced UST hasn't been annoying enough for me to quit it (might help that I really don't care about the two of them getting together), but I really can only take so much. They keep highlighting the forced UST and I might be ditching this show.