So with 2.5 weeks to go before I hit the 1 year anniversary of ownership, I'm at 23,000 miles!
Reliability has been great.
I had a surge issue where engine was surging when stopped "rrrrrrr, rrrrrrr, rrrrrrr."
It happened twice in one day, again about a week later and NOTHING since.
Could have been a dirty sensor or some transient issue. Dealer found no problems/codes.
The other issue was a squeak in the rear suspension, to the point I could hear it in the drivers seat while driving.
They checked rear suspension, identified a squeaky spring bushing, inspected, lubed bushing per Mazda procedure, been fine since.
During last oil change they checked the "rear strut or hatch bolts."
I cannot recall which exactly, and I don't have the work order in front of me.
I think this was a Technical Service Bulletin item but I didn't find it listed online. Might be new.
I have had NO issues with rear hatch and use the auto opening feature ALL the time.
I've done a lot of camping and we are in/out of the rear hatch a lot over the course of those trips, sometimes 10-12 times a day as we use the rear of the vehicle for secure supply storage.
I'm 6'6" and have long legs.
When I would rest my knees against the center console or door panel, they would initially squeak.
I attempted to find the squeaky spots and use a little dry silicone lube, but was never able to locate the spots, they must be interior surfaces of the door and console panels. Anyway, the squeaks went away after a few months.
There have been no other issues, everything else is as tight and solid as the day I bought it.
I get around 20.6mpg combined mileage in most driving, that is because I drive with a very heavy foot.
I have had trips where I've gotten as high as 27.4 with mixed slow driving on back roads.
Long highway trips are closer to 25.5, again because I think "65mph" is a suggestion and not a limit.