As buggy as hell.

So here is the deal:
first - it’s crashing if graphics settings is not set to lowest.
second - gameplay bugs: for example you can stuck in the room because doors not opening.
third - I didn’t save before boss battle and there is no autosave. And boss stuck somewhere outside of the room. And that’s all. Noting else happens. Result: level progress is lost.

This port is the biggest disapointed I ever seen.

skotopes about BioShock 2, v1.0.1