I finally got around to installing the BBQ Guru I picked up from jbvj last month. I have the Horizon 20" RD Special Marshal offset. I've been putting it off due to the lack of motivation to drill through 1/4" steel haha. I hooked everything up to test it out before ramping the temps up for grilling some chicken. I was really impressed with how quick the smoker came up to temp (225). I also was a bit concerned with the possibility of ashes being blown into the cook chamber, which is not the case.
I will be doing a long smoke soon and will post some Q-view.