This episode was a bit sluggishly-paced, imo, but decent.
Things I liked:
-Manchester Black! I LOVE this dude. This was an interesting way to introduce his character and the actor they got is seriously charismatic. Now I just need to see him get his powers, please.
-I can see the story they're building up here with the parallels of both Supergirls potentially being their government's lapdogs, and I feel like if done well (which I think should end up with our Kara going her own way), it could be a compelling storyline to see play out.
-Brainy's callback to Streaky and the "mind palace" was a nice touch.
-I loved the fact that Kara lamented the destruction of the pie stand during the fight, and then immediately went home and baked a half dozen pies as soon as she was freed of her suit.
-I like the Lena/Brainy duo. Brainy is just such an upgrade from Winn, imo, because he offers something other than comic relief, and doesn't need his own dramatic episode in order to bring a little gravitas and/or a new perspective to the table.
-Nice to check in with Russian Supergirl, and I enjoyed the fact that her reaction to being locked in a rectangular column with nothing but a chair for the last few days was simply annoyance at the delay in her training. It was the first glimpse of her personality we've gotten at all.
Didn't like:
-I'm sorry, but James is a dumbass. After all this time, he STILL hasn't learned the basic lesson that you can be a hero without going out there and punching people. That there are actually legal venues through which he could do so, which many people do every day, and that being the head of one of the biggest media companies in the country is a FAR more powerful weapon than anything Guardian could wield. I don't know what kind of message the writers are trying to send by insisting he must suit up as Guardian in order to take action, but it seems ill-conceived. I wish they'd just throw him in jail and be done with it. At any rate, while I had thought/hoped we were finally rid of this storyline, I'm glad it at least backfired on him.
-Was that the end of Mercy? Anti-climactic if so.
-Kevorkian does some cool shots (which, as he is a VFX supervisor, isn't surprising), but his directing/editing choices need work, imo. I think part of the poor pacing from this episode comes from the way he chose to cut to Kara every time she said something, so we could see her speaking from inside the suit, and that' s NOT typically how dialogue scenes are cut. There should be overlapping cuts, even if they needed to add a sound filter to alter Kara's voice in the shots where she's talking and we're not seeing her face in the suit. In the Alex/Kara scenes especially, the resulting edit made it blatantly obvious that those two women were not acting together in the same room or at the same time at all, and it sucked the life out of each of their scenes. Those scenes just fell flat, and that made the proceedings feel a bit dull, imo.
-Not at all surprised the new President turned out to be a jerk, but they could've at least made the transition a little more gradual, lol.