Nikon Z7, Z 40mm f2.0
So my Z7 is a high mileage unit in relatively good condition, very similar to my original D800 (even paid about the same, a low, low price). The idea behind buying it was half in getting something that could really spark some passion about using the camera, something the R6 didn't quite do (being boringly competent rather than quirky like the Z7) and something at a cost that made it not really worth selling if I decide to go elsewhere as a primary system (ie even if I did go Sony or back to Canon, I'd keep the Z7 as a crop/manual lens body)
Overall, it hands EXACTLY like the Z5. It does feel smaller to me though, as I'm coming from owning a series of relatively chonky bodies over the last few years (G9, then A7RIV, then OM-1, then R6 with the somewhat svelte R7 in between the last two). The Z5 had been larger than most of the bodies I was shooting before or alongside it, while the Z7 is actually on the smaller side of what I've been used to.
I still don't like the tilt-only display, and the front command dial is poorly located and somewhat hard to engage, especially with gloves. The rear controls are excellent and the two front Fn buttons are chunky and easy to feel/actuate.
Button assignment is a mixed bag, the R6 had more options overall, but lacked several critical ones for how I shoot (notably bracketing), but I do lose 2 buttons to bracketing (1 for the setting, 1 to engage burst). Overall it took much less time to get the basic button assignment sorted although I still wonder why there's an 'i' touch button on the screen right next to the physical 'i' button, both of which do the exact same thing. ISO and exposure compensation are also not assignable, which is two wasted buttons for me since I use Easy Exposure Compensation only (ie on the subcommand dial when in AE modes) and ISO is a rare enough change for me that I'm fine with it on the 'i' menu (I tend to just flip auto ISO on & off and otherwise let ISO drift within my preferred range). I'd probably leave ISO on the button though, it is useful unlike Exp. Comp.
The EVF is the excellent experience I remember from the Z5, distinctly superior to other similar spec panels and lagging only my OM-1 in quality (and the OM-1 is a higher spec panel). The R6 was good (better than Sony's equivalent for sure) but not this good.
I dunno why 1.2x crop mode disappeared. I rather liked that feature on the D800 and used it alot when I wanted speed or a touch more reach and didn't mind only getting 25MP (down from 36). Apparently it's not a thing anymore with Nikon as the Z8 seems to lack it as well.
AF performance is perfectly acceptable for single shot work. Don't think I'd want to shoot most action opportunities with it, but for most of my real-world uses it will do fine. A bit better than the Z5 from memory, which is to be expected (The Z7 has a faster sensor than the Z5, but otherwise very similar AF system).
Overall, I'm pretty impressed, this 'slow & unusable' body from 6.5 years ago is actually a pretty solid option. I rather wish it had been a viable option in the past, the card cost had always killed the Z's for me other than the Z5 due to the extra cost over an A7 series or R6 series, and the Z5 wasn't quite enough camera for me to re-buy as a primary. Having reasonably priced CFe options really changes the math there (especially now that I own a decent CFe card and won't have to buy another if I swap bodies around)