I bought this to supplement my WSM 22’. First problem was that the water barrier pan and holes drilled around the rim. Weber customer service verified that it should’ve had these holes. During the first use I found that the temperature gauge was reading 100 degrees lower than actual temperature. Most unfortunate. If it weren’t for this, I would’ve rated a 5. Temperature monitoring  is critical for successful results. I would recommend this product with the caveat to use your own trusted method of monitoring temperature.