"ReactOS is incomplete" = still needs development attention, which is what I've said - "it also awaits contributions". "user-hostile" as much as Windows has ever been. "Very little actually works on it" is actually more than what works on Linux + Wine, which at it's turn (like many would claim) do cover enough needs already, and that's only the "alpha stage" we're talking about here. ReactOS is getting better and better at the fastest pace relative to the rest of the OSS. You see, even if the ReactOS project had to start right now, it would still have a guaranteed chance of succeeding thanks to it's principles: it is free and open source like any other "free-as-in-speech" option out there, plus the one thing that makes the difference - it avoids alienating the users by breaking the backward binary compatibility for the sake of whatever reason. It offers the Windows simplicity.