Just finished both campaigns and all I have to say is... Hanabi better get on it before those anti-aging drugs start wearing off... ya know?
Started with Kasane and happy I did it that way. Pretty sure I'd be equally happy if I did it the other way. Despite it being largely the same story, there's enough differences that it does flesh out some of the weirdness between the two. But one playthrough (either one) seems plenty good as is. Is this story silly and crazy and all over the place? Yes. But, I enjoyed it all the way through. Some bits in the middle kinda dragged a bit (and it'd have been nice to level up bonds a BIT faster with no grinding), but overall, for a story of this convoluted genre, I think they did a pretty good job.
[Also.. damn.. I put in over 70 hours into this.. Very close to getting all the achievements, too. Glad I played on easy honestly XD. The fun for me was less in just winning fights and more in trying to keep my SAS meters up for as long as possible with brain crush chains.]
Now to play Kanade's side of the story. I feel like I'm going to miss Yuitos party's powers though, they felt for the most part, much better. I preferred teleport over hypervelocity. Invisibility is useless compared to Sclerokinesis. Pyrokinesis is slightly better than electro- kinesis. Duplicate is awesome for DPS though, but clairvoyance knocks down bosses.
It's funny, I felt the opposite way playing. I think it's just what order you start with, though. You get a lot more time with those powers in the whole range of how to use them best. In fact, on my second playthrough, I used Yuito platoon's powers more even when I didn't have to. Which is probably really more to say that I figured out WHEN to use them better. Duplication will never (Edit: NOT) be a go to, in either party haha. It's fantastic But, hypervelocity is super useful in different situations than teleport (I loved TP for quick kills when I needed to get to others that would hide. Hypervelocity is amazing when you just need to beat down a chinery with tons of damage. etc. etc).
Ultimately, when I got comfortable mixing and matching, I was going in and out of SAS powers (4 at a time) constantly, managing meters, adjusting for enemies, etc. etc. Lots of fun.