I did the cyro'd powerslots and Hawks LTS pads on my truck and I love the way it stops now. I agree $200 seems way to cheap, the stock rotors are more than that. Many people had cracking problems with drilled rotors on the SD's, if you bought RotoPros they claim they have corrected this issue???
I also did the SS wrapped in Kevlar brake lines, it made a big difference in pedal feel.I wouldn't wait to long to really get on them, most of the new pads require this be done right away to properly bed the pads. Did you receive the bedding in procedure for your pads?
Good Luck.