I like it.
I did feel the weight of the fish lower body on the character while playing.
I know the control design is made to make you feel alien in your own body especially after trauma, however if there was some sort of compromise to make the controls less frustrating while avoid obstacles that would be great.
Looking forward to release.
[SPOILERS]
I was able to get past that last monster both by locking him in the separate pool the first time and swim by him after I messed up the switch the second due to monster pathing issues the second time.
[SPOILERS]