This is on the WatchDisneyXD App, and I watched it over the weekend...
There are spoilers here if you're waiting for it to be on TV or can't watch it so beware, more or less.
I did NOT like this episode as much as the previous one. There was some darkness with the implication that the weapon they were after does nasty things to living beings, but the idea a simple rifle can shoot and bring down a walker? Kinda lame.
Likewise, how'd the Empire have and use these on Zeb's species, but now need prototypes to mass produce them? They had them before, and used them to put down a species more or less!
I felt like the pacing was a little goofy, and 3PO and R2 were really crowbarred into it IMO.
I did like I guess why they were there, and where they ultimately wound up, and how there are more to the rebellion (and more powerful groups obviously) than our main characters.
I didn't loathe this episode by any means, but it just wasn't as good as I was hoping.
I liked the Capt. Rex cameo though, and I'm all the more happy I own a Starspeeder toy sized to action figures.
Oh, one more thing, the alien animation is thus far a good deal more redundant than it was in TCW... I know that's a thing the animators try to overcome as a series goes on but it's been way too noticeable so far. They really need to diversify their alien character library they can go to. The Aqualish all wearing the same jacket is getting old.