I always enjoy a stealth game and the stealth in this game is simple but easy to follow which is always a plus. The font makes it hard to read for me so I would recommend a different typeface. I think I died like 5 times on the first mission alone just to get my bearings and I kept thinking that the intel was in the one of the rooms and not actually on the guards themselves.
However, I was so focused on the stealth and the shooting that I played for a while before remembering that I can rewind myself which did not feel too intuitive or all that necessary early on. Maybe that's something to work on. Meaning, making it so that on the very first level I have to use the rewind mechanic to teach the player when and how to use it