I've cooked on a team that uses the Guru (HawgsNHeifers) and the Stoker (Ad Astra).
I'd say that they are overall equal and that no one here has lead you astray. Each comment is spot on. Each controller has their good points and their, uh, less than good points.
What kind of 'tech' person are you? If you're an IT geek who grooves on a web server embedded on a SIMM, get a Stoker. If you're a Ron Popeil (Set It and Forget It!) kind of person, then go with the Guru.
Bottom line is, just like any cooker, be sure you've got an airtight system. No Stoker OR Guru can help you if your cooker is drafty (which translates to 'out of control')
. . . I know from experience! LOL!