I had the opportunity to go to CP last August and here's some ratings.
I stayed only one day so I did't ride all the coasters.
Iron Dragon: B: It was much more fun than what I've expected it to be.
Magnum XL 200: C: I didn't like it so much.
Genimi: B++: Great ride, lot of fun!
Cedar Creek Mine: C+: Nice ride where you can relax a little bit betwee a big coaster and another one.
Disaster Transport: C: It's ok; nice theming in the queue area but nothing particular in the ride.
Mantis: D-: Painful!
Raptor: A: Great ride!
TTD: A+: I had to wait 2 hours and 15 minutes for it but it was worth it!
Millennium Force: A++: Awesome ride!
I wish I had another day to ride the rest of them and to ride again TTD and MF with daylight!