It's a game about heavily armed giant robots fighting in space, sweet. The presentation is quite nice and the singleplayer campaign should take around 12-15 hours depending on the difficulty setting. The story is decent, it's not bad but I've been spoiled by Japanese animation, I kinda expect anything with giant robots to also be a military/political drama.
The customization is quite good in general but the upgrade system is a mixed bag, there're a lot of pieces you can mix and match to build your dream mech but they only provide more health, energy or damage, nothing that changes your playstyle significantly, and the gameplay isn't very deep to begin with so it can get a little repetitive near the end of the campaign.
Overall I enjoyed this game, it was quite fun.