I've had my Canyon for three months and I love it. I was driving a 2012 Sierra, but I was looking for something easier to maneuver and park and the Canyon is much better in that respect. Also, I'm not getting any younger, so I like the lower step in height. I will say that finding a Canyon configured like I wanted was quite a journey. Maybe 90% of the crew cab models have the short 5 … foot box, and I wanted the 6 foot box. Plus I don't like black leather interiors, and nearly all have black. I was considering a factory order, but I finally found an emerald blue SLT 4WD with cocoa dune leather 350 miles away in a small town in Ohio.
I really enjoy driving this truck! The ride is quiet and smooth, computer is showing 23 mpg. The V6 can really move. I'm impressed with the build quality. Seats are very comfortable, and the back seat area is roomy too. Much easier to park than my old truck, and its great in heavy traffic. The dash is laid out logically, with knobs where they are supposed to be on things that are supposed to have knobs. I don't have to hunt through a maze of buttons like I do with my wife's SUV.
If I had to hunt for some gripes, here they are. Keep in mind that I consider these minor design issues. Rear view mirror visibility is limited with a small rear window. About half the view is the inside of the tailgate. Of course having a long bed contributes to that but the large screen HD back up camera helps a lot. The large front air dam is a little unsightly and limits ground clearance, but I don't plan on doing much off-roading anyway. Also, the way the hood is stamped, there is a surface that slopes back downward toward the windshield. This can result in some sun glare even if the sun is at a relatively high angle. Finally, the spare tire seems to be mounted so that most of it shows from the side.
Great truck, I highly recommend it.
UPDATE: After 15 months and 32000 miles, everything is fine. I have been on several 1000+ mile trips, rides smooth. Haven't towed anything yet.
Update 4/22/22: now at 54,000 miles, original tires still look great. Had an issue with the transmission shuddering at highway speeds. Took it in to the GM dealer about 4 months ago, they said it was a known problem and a TSB bulletin had been issued by GM. The torque converter was not locking in properly due to the viscosity of the transmission fluid. The fluid was changed out and it's run perfectly ever since.
I get a lot of compliments on the truck, especially the color and the combination of crew cab with a long box. Blue Emerald Metallic was offered only in 2019 and 2020 I believe.