I had the same dilemma. Couldn't decide between the Yoder YS640 or the Cookshack PG500. After careful and diligent research and consideration, I decided to go with the PG500. I absolutely LOVE it. It is so easy to either grill or smoke and does a fantastic job. I couldn't be happier with this stainless steel work horse. Workmanship is far beyond my expectations. I think the trigger was the Cookshack's grill was easier to grill on. Also, I liked the idea of stainless steel.
My main concern with making the leap to pellet smokers versus the stick smokers was the fact that the pellet smokers do not produce as much smoke. I deliberated that issue for a long time. Don't worry about it. You get plenty of smoke with the pellet.