We have, in our neighborhood, a driveway which is well known for it's slope. Extending about a quarter of a mile straight up a mountain, the driveway is pretty much a paver's worst nightmare. However, not only did the guys at Precision Paving take the job, they LOVED it!
Specializing in difficult driveways, these guys are great. They gave us extra asphalt on our hill to make sure it would stay, and they rolled it several times (anchoring the roller with ropes and chains due to the slope).
They were courteous, polite, and did a fantastic job.