So after finishing TOS, I continued my rewatch by watching TMP a few days ago.
It's obviously not a movie I go back to often. It's not in the top half of Star Trek movies (I don't count the JJ movies there), but I really don't think it's as bad as many people make it out to be. The worst thing it has going for it is that it's quite boring at times, and I'd say that's largely only the first half or so. Overall, I actually liked it. The characters are, sadly, much much duller versions of themselves, and it's missing a lot of the essential character elements that made that crew what they were. I found the story itself fascinating for the most part, and the visuals were quite amazing, given what they had to work with before.
One cool moment I never caught before was when Spock gets back on the bridge (or around then) they play an almost melancholy rendition of the original series theme song. I never picked up on it before because I was always much more into the TNG theme, but having heard the TOS theme a hundred or so times til now, it finally registered. Nice little moment.
Anywho, boring first half but still not bad, and a much better second half. Looking forward to catching TROK next week or so.