Okay, chances are if you're reading this you've probably at least heard of this series. It's known for mainly one reason:
YOU LOVE IT OR YOU CAN'T STAND THE FREAKING HELL OF IT!
To get this out of the way, I fall in the first category.
This is the most generic, steriotipical, preditable harem in existance. Seriously, the characters are that over-used. But from my point of view, that's part of the reason why I like it. After just finishing a huge dose of WTF?! a la Panty and Stocking, it was nice to kinda relax and let the weak plot unroll itself.
I do have to give Ichika credit. Although he's as stupid as hell when it comes to realizing a girl (in this case dozens) likes him, he's a bit smarter then most harem protagonists.
Now for the harem analysis:
Houki- tsundere first girl (not really special, but COME ON! Who doesn't love a tsundere?)
Cecilia- annoying
Rin- still annoying
Char- I. LOVE. THIS. CHARACTER. SO MUCH MOE!!!!!!
Laura- kuudere, I think...? a really REALLY sudden change in personality, so...
Plot: No. Just, noexistinguntilthelasthreeepisdoes. Yeah. No.
Action: Aw, hell yeah! This had some of the best action I've seen in a while. Really cool mechas with badass designs. I SO want to go to this school!
So in recap, if you want a generic harem with pretty art, no plot, and badass battles, go ahead! Entertaining in a boring sort of way, if that makes sense (actually it probably doesn't).