I know its technically not "prime rib" but close enough! All I used for seasoning was kosher salt, fresh pepper, and a little garlic powder. These Brinkmann Smoke N Grills really do a good job after making a couple mods and taking time to get a feel for them. I kept the temp between 225-250 and used apple wood chunks. Let it sit out for about 45 mins and then threw it on. I waited a little to put the wood chunks on. Took it off at 137, it eventually reached 144. Not a lot of meat on the ribs, they look nice, but it was mostly just fat. As you can see, I completely forgot about taking a picture before I started slicing it, I was like a dog waiting to chow down and practically drooling from my mouth watering! I didn't realize at the time to cut the fat on the left after I removed the ribs. Altogether I'm happy with how it came out and my whole family really enjoyed it. Once again, this site really gave me a lot of great tips and testimonials!