Considering: 2017 QX50 3.7/7A awd...

Ventruck

I rented the 2018 or 2019 model.

It did feel like an SUV as far as size goes, at least in dry conditions. Handling wasn't engaging imo, but not sloppy either. Pretty sure it only had the smaller VC engine (since, rental car). Still had more than enough pace on highway stretches where everyone was going over the top, and stable.

It was a bit of a head scratcher. I can't say it was bad, but me and the passengers for the 6+ hours of driving weren't sure about its worth at MSRP when the non-luxury Japanese brands were improving their interiors. Then again, I feel that way about some BMW's and Lexus models. It's not so much that they're bad, but it's like, are they really all that better for the money?

The used market may be the different situation, though. I imagine it starts looking like a more attractive prospect.

If say, you're trying to size it up against the CX-5, I think it's not on the same level in terms of driving experience, partially because of the transmission the Mazda has that makes it feel more "direct" as opposed to the power.

ImportConvert

The 2018-2019 QX50 is in no way similar to the 2017.

Different engine (2.0 turbo, instead of 3.7 VQ37)
Different powertrain arrangement (Front wheel based, not longitudinal)
Different transmission (CVT vs the same 7A in a 370Z)
Different body structure

It's literally as different as comparing a Maxima to a 370Z, except even more different.

I value your experiences, but just saying the carry-over isn't there, hence why I'm looking at a 2017 and not a newer model, which is what many people question.