General Comments:
Truck is great to drive. The 4.0 V6 seems to have good power and pulls my trailer carrying 4 dirtbikes in it very well.
The seats I find really comfortable and everything in the truck is easy to get at or use. Quality inside is average I would say. Definitely not top quality that's for sure, but hey, the truck wasn't that expensive; $23,000 new with all the options and 4WD.
I have maintained the truck to a tee, including using top quality oils and such. Original GoodYear tires were garbage, zero traction in wet or snow, so I replaced them at 10,000km, I added magnaflow exhaust to free up some of the restriction, which did help and improved the mileage about 25-30km per tank, so quite substantial. A K&N system was also put in for the air intake and that helped too.
Mileage is still bad though. Hwy driving brings me 19mpg on cruise at 65 mph. I drive this truck very easy and am not lead footed. I can't imagine the mileage if you were hard on the truck
The transmission is the only concern I have. It truly has a weird feeling when it upshifts when you accelerate quickly, and often going around corners at slow speeds the transmission can't make up it's mind about which gear to go in. Just makes me really nervous.
When the truck nears the end of its warranty period, which is when my lease expires, it will go back to Mazda. A Honda Ridgeline is looking pretty good, but lots more $$$$.