Community, and a question

I've finished watching Community season three. Mostly I thought it was great, although sometimes it veered out of meta and into parody (the Law and Order episode was pretty pointless, although I was amused when I figured out why it was called "Basic Lupine Urology"). Two things I didn't like are under the cut because they're more spoilery.

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And now the question: should I watch season four? I've heard that because the idiot network replaced Dan Harmon and a whole bunch of other people who'd worked on the show, season four is very different and not nearly as good. Will I be happier not knowing? Not that I don't have criticisms of S3, as you've seen, but they're not problems that ruin the show for me.