Was it figuring out the controls or how to progress in the level that was frustrating? Or both?
Well in the very first room where you start, i quickly ended up stuck way up in the ceiling and couldn't get out. I progressed a bit after restarting, but the controls and progression are indeed both a bit un-intuitive, or at least they seemed to be to me. I don't mean to be crapping on the game, I really do think it has great potential!