From viewing the first episode, it's made quite clear that this series is doing nothing to move away from the old formula for harem anime. It's sticking so close to the formula, in fact, that it feels like a copy-and-paste of harem anime done before.
If you're someone who's seen plenty of anime in your time, particularly harem anime, you'll be pointing out many details, character-types and scenarios that are very typical to harem anime in general as you watch this.
In short, this is just another harem anime. While the addition of the mech-suits makes for interesting possibilities, the characters themselves are cookie-cutter and predictable in how they will act.
If you enjoy eyecandy and what harem anime have to offer, you may like this series. But, if you're looking for something even slightly original, best look somewhere else.