Drilled rotors are prone to cracking around the holes. You may or may not have a problem with this, depending on how you drive, but it is a limitation.
In my opinion, there is no benefit to drilled rotors for street use, except for looks.
If you are hard on rotors, you may wish to consider having the rotors frozen. Take a look at
www.frozenrotors.com This may help drilled rotors to hold up better.
