I haven't seen numbers myself, however this is the jist of what I've heard: The PC12 is great while under warranty. When the warranty is up, you better have deep pockets. There are a number of items such as flaps and landing gear that have rather low cycle limits. If the aircraft is averaging 2 hour hops, it's not too bad, the numbers can work. If the hops are averaging around an hour, the increase in cycles creates a ballooning maintenance bill.
If you don't have to carry that kind of load and are looking for a corporate runabout, I think the TBM700 is the better airplane. Faster, more fuel efficient, and maintenance guys tell me it is built like a tank. That may have to do with the fact that Socata makes a lot of components for Dassault/Falcon and Airbus.
However, I digress.
