PROS:
+ Great animation (combination of mecha with computers and sci-fi)
+ Great action scenes
+ Opening and ending are good
+ Voice actors did a good job (although I am not a fan of voice acting)
+ Kurumi & Tohka
CONS:
- Not much depth into characters, just girls liking one guy
- Not unique story
- Useless protagonist, who gets all the girls
- Cheesy dialouge, not-so-funny comedy
- Annoying Kotori & Shido
As long as the fanservice is not in the way of the actual story then that's good. Kurumi's character resembles a lot like Celes from Danganronpa in her calm and manipulative speech. Tohka's character resembles a lot like Yozora from Haganai. As long as the girls like one guy with a reason then that's good. I also really wanted to see more depth in the characters than just plain and simple.
Tohka & Kurumi are my favorite characters in this anime. Kotori is quite annoying.
I have seen some harem anime that has great character depth and lesson to be learnt eg. Haganai & Oregairu. Haganai is my best anime.
The protagonist I'm refering to is Shido, he gets all the girls and is useless. Shido reminds me a lot like Yukiteru Amano from Mirai Nikki. Never mind most harems are like that so I won't get mad about it. But the conversation is really not so engaing.
I actually give credit for the animation and graphics especially for the action scenes.
So I will say that there is nothing special about this anime. Just all right 6/10.
