Finally saw it. A few notes (AND SPOILERS!):
-We're only 1 episode in and the Rangers are already better developed as characters than the last two teams, and particularly Mega Force. They didn't seem generic cookie cutters or wannabe analogues of the originals.
-Red, in particular, is a much better actor than the previous two, who seemed to be models first (it helps that he already had some good acting experience, such as an appearance on American Horror Story)
-How awesomely grim is it to start the episode with the destruction of the Earth? That's pretty gutsy for an American kids' show, but in a way it evokes the premiere for Go-Busters, too. And besides, the episode's upbeat nature and the vibrant colors in the museum very much overrode it, which is perfectly fine.
-There's no samba to the morph (yay!) But it's only the first episode, so who knows? The samba might become routine later on.
-Final battle of the episode was a bit short, but hey, that's fine for a first episode. And I liked how it twisted some tropes (e.g. accidentally morphing, not knowing how to handle the gun, etc)
-With that said, I really like how fluid and fast the wirework was in this episode. It evokes some of the older PR shows like Time Force, without the overkill of some of the Disney seasons.
-Only downside really -- the same generic sound effects they've been using since Dino Thunder, complete with the squeaky generic laser sounds. If they start reusing the same dollar store toy laser sounds that the Simpsons uses (and it's a comedy), I'm going to be pretty annoyed