We played the "front 11" of Diavolo yesterday and LOVED it. I took the wife and kids, so we played from where we expected the red tees to be based on the maps. Red tees are not there yet, but I'm sure they're coming. From the red tee location, it's a very playable rec course, even for beginners. From the Blue tees, it's a beast. That said, we didn't encounter a single hole we'd consider unfair. There are lanes to the basket on every one of the holes we played.
There's a mixture of long, open holes and your typical tight, wooded North Carolina holes. All in all, a wonderful course. Kudos to CADL and the Town of Cary for bringing us a top notch course. I can't wait to see (hopefully) high level tournaments hosted there in the future.