I have been checking out the Pitmaster IQ110s and IQ120s online and have seen some stellar reviews, but I have also seem some frustrated consumers. Seems like the guy who came up with the idea gets pretty defensive with customers when people tell him there are issues with their units. I even read that one guy couldn't get his IQ to work properly, sent it to Pitmaster at their request and in the end they told him nothing was wrong with it. They only gave him 2 options...Pitmaster could return the unit to him or give him a 50% refund. 50% REFUND?!! What a joke. I am not even a customer yet and that one left a bad taste in my mouth. On the other hand there are a ton of reviews from people saying they love the things and they eliminate a lot of the temperature babysitting. The IQ110 is $139 and the IQ120 is $199...not a small chunk of change for what seems like a computer fan that you can change the settings on. The IQ120 has probes for both the smoker temp and another for the meat temp, which sounds great, but I am not sure how often I would use the other functions you get with the more expensive model. I am smoking a brisket (first meat smoke on the mini WSM) and I can pick one of these IQ's up locally rather than waiting on shipping. Anyone use these? Experiences? Necessary for a mini WSM?