I loved the simple but consistent appearance. I was captivated by the main menu, it had all the information you need, but at the same time, you could fidget around with stuff, preview what the gameplay will look like. The color palette is easy on the eye and get the necessary info through.
My only issue was with the difficulty, by the time I got to the second pylon with the difficulty only "warming up", it felt like I little chance to repair it. Due to all enemies being kind of fast, it was really difficult for me to pick up the gems and get stronger. Of course, it might just be a me issue.