Anyone else done a rewatch lately?
Not lately. I rewatched it when the DVDs came out. It's still generally enjoyable, though the difference in animation quality between the movie and the cartoon is very noticeable. Not something I noticed as kid, funnily enough.
I guess what bugs me most are the storylines. They have some brilliant ideas and concepts, and I definitely understand why they appealed to me so much as a child. But with adult eyes, I found myself wishing they'd done the last 10 minutes of each ep differently. There are just too many dissatisfying endings with Megs shouting his familiar "Decepticons: Retreeeaaat!" after just a few volleys of sustained Autobot attack. The battles are never quite as awesome as I remembered them. Megatron's Master Plan is perhaps the prime example of this that springs to mind. Great episode and then just a straight mass shoot-out at the end.
The More Than Meets the Eye 3-ep "feature" and The Movie itself have some cool battles though. The Dinobot eps where they go to Cybertron are fun too. Some of the Aerialbot ones are surprisingly good too, esp. the one where the travel to Cybertron's past.