Welcome, Bronnx.
You won't regret getting WOFF 1 & 2.
I have flown all the Il2 iterations since inception plus RB3D and RoF, all in SP mode, and WOFF is the best game of them all.
RoF & Il2 CoD/BoS are prettier and capture the feeling of flight better than WOFF IMHO, but WOFF will make your palms sweat more then other other flight sim I've played.
It is a visceral experience, and the weather and clouds in particular sometimes cause me to say "Wow!".