A couple of things:
1) I enjoyed playing the game, the art style is a fantastic choice and you can hide a lot of the blemishes that way. A more realistic mech game will look ugly on the switch.
2) I love the concept of being able to not only improve the Arsenal but also improve the player character and make them more like mini androids.
A couple of improvements
1) Frame rate does become an issue in mission number 3 when enemies start to appear.
2) Handheld mode looks a bit rough...they can definitely optimize it to play better on handheld mode.
Overall the game is a fantastic new ip, I liked the fact they released a demo because they can see how people enjoyed the game and areas they can improve performance.