The track is amazing. Very well done. I think this is the best version of Bahrain for Assetto Corsa.
However, you need to improve the AI Lines in some parts of the GP Layout; the biggest flaw is in the S sections (Turns 5 & 6, and the turns 11 & 12) where the AI runs too wide and does it horribly slow (I always end up brake checking them or hitting the back of their cars). Other than that, I have no complains.
Have a look at the Overview tab for some screenshots.