At first, I struggled to get the movement and camera rotation down but I did figure it out eventually. Nice idea to use portals as a transport to multiple strange places and you encounter different enemies along the way.
The killing of the enemies is way too easy as I think I can kill everyone in 1 hit, as long as I'm not spotted as seen in their detection bar above them. I like the dodging/rolling mechanic as well but I couldn't avoid getting shotted at even when evading when spotted.