We entered Kazakhstan from Turkmenistan. The road from the Temirbaba border to Zhanaozen/Aktau was terrible. Potholes, mud and therefore a very slow and tiresome trip.
The good thing is, we are in Mangystau, a region so beautiful, it stole our heard. Perfect for overlanders, self driving, you can stop where you want and lots of great off-road tracks, but not to demanding. Within 2 weeks time you can visit the highlights and they are fantastic.