The Cartoon? It's not good writing or acting wise. I got married maybe a dozen episodes in and didn't have cable at our first apartment so never got to see the rest. I've owned the box set for years now, I've tried to watch through at least three times. I have yet to make it through the first half.
-ZacWilliam, the concepts and characters in the toon are not bad I WANT to like it, but the writing is dull and generally just kinda dumb/bad and the poor acting/directing doesn't do it any favors.
I'll always advocate for the back half. I'd say if you haven't made it there already, skip to where Thrust first shows up and go from there, or just on to the second half entirely. (I personally really liked Jetfire's debut, his first combination with Optimus, and the debut of Tidal Wave, if I was to pick and choose from the first half.)
If nothing else, it has one of the best Optimus vs. Megatron/Galvatron fights of the entire franchise, I think. I used to rate it as THE best, but... we've had a lot since then. I'd need to rewatch and reevaluate the rest.
You can even find videos where they just cut the other stuff happening around it, and focus on the fight.
I'm also going to say that Armada and Energon were going when my friends and I started doing the RPG that my Mega Man Legends stories are based on. That fact is... not entirely insignificant, let's say. And the two are kind of tied together in my mind as well.
...come to think of it, it's funny we get the new Armada toys in Legacy around the same time I rebooted that story. Certainly puts me in a mind of wanting that new Optimus even more, though!