Never eaten at one of their joints, so I can't comment on their actual Q, but I will say that I just LOVE their Original BBQ Sauce. I was gifted a bottle at Christmas, and really liked it. I've gone through 5 or 6 others since, including ones I used to really like (like Better Than Sex (both Regular and Extra Tingly), but even it pales next to Gates. And compared to the other bottle I was gifted at the same time, Jack Stack? No comparison. I can't understand why it's so popular.
Anyway, I've got 12 bottles of Gates sauce on the way, 8 Original and 4 Extra Hot. Can't wait to try the Extra Hot!
Yoder YS640, Weber Performer Platinum, OTG and Q220
ThunderDome Vortex, GrillGrates, AMNTS (6" & 12")
Weed Dragon Torch with Squeeze Valve (VT2-23SVC), Looftlighter, BernzOmatic Torch Head (TS8000)
Tappecue, Maverick ET-732 (x2), Maverick PT-100
SousVide Supreme, VacMaster VP112 (chamber), VacMaster Pro305 (suction)