What they got right: The return of Moon Supergirl! Making the "reset button" work when it comes to Lena. A cameo by the Supermobile. Our three favorite girls working together to stop a cat kidnapper. Yes, you read that right...the Supermobile! There is such love and fun pumped into every issue. They're not just a bunch of nostalgia cameos; they actually fit in where they're put. As a bonus: Belinda gets attacked by the cat twice. It's no Wolverine getting eaten by a dinosaur, but I'll take it. They also make the twist ending work. That alone deserves props.
What they got wrong: No explanation for why Belinda is working with our heroes, or tries to give Kara a hand with Lena at the end, considering making Kara/Linda's life miserable is one of her stated goals in life (along with being popular). There's also a word balloon that looks like it should be Belinda's but is pointing more towards Supergirl. Hey, I have to stretch for this section when it comes to this comic.
Recommendation: A letter writing campaign to either get more Supergirl: Cosmic Adventures comics produced or a "Moon Supergirl" graphic novel. This comic should not end.