So I just finished watching Part 1 (first 5 episodes).
What I liked:
+ Teela's new appearance and confident swagger (yes, I'm partial to female bodybuilders

)
Ditto for Evil-Lyn (and apparently she gets even bigger in Part 2!).
+ I liked the story, to a degree: Teela and her friends trying to survive in an Eternia without He-Man and with all the magic gone. Sworn enemies Teela and Evil-Lyn forced to team up, along with Orko, Beast-Man, Roboto, and Man-At-Arms. And of course the Skeletor twist at the end.
+ Voice acting was great. Stand-outs were Mark Hamill as Skeletor and Lena Heady as Evil-Lyn. Nice to see the great Susan Eisenberg (Wonder Woman) return as the voice of the Sorceress.
+ Sound-track was great.
What I neither liked nor disliked:
+/= Animation was by the same studio that did the Castlevania series. It wasn't bad, I just felt the series would have better served by another studio. This studio does "fantasy-horror" (like Castlevania) brilliantly, but for straight up fantasy would have preferred another studio.
What I disliked:
- The story felt very flimsy. This post-He-Man version of Eternia was not sufficiently fleshed out. For example, Cyclops and Trapjaw and the weird cult they had put together. What was that all about? It wasn't properly explained. Who was the undead-sorceror that confronted Teela in the Land of the Dead? Was that Evil-Lyn's sorceror dad? Again not sufficiently explained. All in all, just not enough world building.
I'd give it a 6 out of 10. Not all bad, but judging from the internet's frenzied reaction, I was expecting a radical departure from the old story, but there was really nothing radical about it, other than Teela's eccentric new haircut and bulging muscles. Hoping Part 2 is a little more interesting.