Hi Jim, the Cajun ring is all SS and made extremely well. The rotisserie motor is one of the best. The battery operated motor can handle a good load. You can use the Cajun ring on both a performer and then turn it over and use it on a WSM. I can't say anything about the Weber ring having never used one. Don't hesitate to buy the Cajun, it's well worth the money.
Good luck with your decision.
Bill