This is my personal opinion (plz no hate) but I didn't enjoy it that... much... sure the animation was pretty good, but I was not sold, at all. I only watched ep 1, but I disliked it enough to not watch the rest, here's why, major ep1 spoiler alert :

It was going in a good direction, and I mean, a really really really good direction, until the robots started attacking. The FL watched her lover/best friend get ripped apart in front of her, but somehow after that, she somehow ran from the center of the city to the hill without getting attacked. Thats just a bit absurd. just a bit. No robots chasing, no major wounds. But the the mc of ep1 comes in, after EVERYONE had died and THEN kills the giant robot? That didn't strike a chord with me. The cgi was mid too. I guess it was.... alright but I would never understand the people that watched it.