I have a CyberQ II running two WSMs and it is great. I've also used a NanoQ with good success. Its not that the WSM doesn't run smooth but it is more of a peace of mind issue for me as a solo cook. It is great to set it and get a little sleep. If you want to see it in action you there are some videos on youtube and the bbqguru site shows the installation of the fan adapter in pdf format.
2 - 22.5" WSM , Weber 22.5 Performer and a very tolerant, very Beautiful Wife!!
Black & Blue Thermapens!!
KCBS CBJ & TC #55078