Is it better compared to FS9???
I haven't trued it I've just seen the screen shots.
FS9 is the most popular Flight Sim in the world. I read an article about 6 months ago that the U.S. Navy claims the their flight recruits that use the sim for training learn 10-25% faster then the ones that don't.
You see how many people from different countries use it.
In the end it all comes down to personal taste, read the different forums and see what you think then.
Good luck whichever you choose.