The game has potential but potential doesn't cut it, a definite 2.5 until its fixed.

User Rating: 2.5 | IL-2 Sturmovik: Cliffs of Dover PC
The game has potential but potential doesn't cut it, a definite 2.5 until its fixed, atm it is far too buggy, and poorly optimised and is almost unplayable for many, for yet more it won't even start. It looks great, more so when it isn't running as a slide show, but that's about all that is working, and even then there are still graphics bugs.
It does not even support Force feedback, a staple of every sim for the last 10 years and even though it is multi threaded, its implementation is broken leaving it to run on a single core.

Might be fine given a lot more development time, but once the reviews start hitting, it may not get the time it needs.

Some users are sighting 1c's previous support of IL2 as a banner to wave as if to ensure it will get fixed, but 1c is a different company now. Oleg is no longer at the helm on this project, and support of il2 was passed to a third party years ago.