I think I'm a good person for the response, since I have both. I used the Guru for 4 years. I got tired of replacing the temperature probes, they seam to be cheap , or at least they don't last long at all. The fan's for all the Guru's are very strong and durable. I have the 4 and 10 cfm. I just purchased the IQ, with high hopes, and I am really disappointed. The reason is there is no on demand blower commands. My fire would be dying, and the blower just barely going, then when the fire dies, the blower sits on full speed, to little to late. No control whatsoever.... So to be honest, both of these products are not worth buying. I'm looking into a reverse flow flue fan, I think this is the new future for BBQ.
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