I decided to move to Sony's platform from shooting Nikon's D810 and I'm really glad I did. While the controls might not be quite as intuitive as my Nikon D810 and this camera definitely wouldn't work well as a weapon in a pinch, the image quality is so perfect and amazing that it's forgivable.
Here are the pros and cons as I see them to owning the SonyA7rII:
Pros:
Amazing image quality - the best I've ever seen - and I did a lot of side by side with the D850. When dealing with high end camera's that occupy very top of the DxoMark scale, it really comes down to specific needs and personal preference.
The EVF is absolutely fantastic to use. It's clear, the colors are wonderfully vibrant and true to life, and the ability to zoom in on far away objects from the viewfinder for perfect focus is a great benefit worth the extra demand on the battery.
Silent mode which uses an electric front shutter is great and now (after upgrading to the latest firmware version) appears to work when uncompressed RAW is selected
Though small, this camera feels solid and, with the grip, fits my large hands comfortably
Though Sony doesn't have a large lens selection, the lenses they do have are insanely sharp and bar none among the best I've ever owned, particularly their Zeiss lenses and new Sony "G" lenses. To give some perspective - the best lens for Nikon ends at a 36 sharpness rating, Sony's lens lineup almost starts where Nikon leaves off and goes up to an insane 46 rating (per DxoMark).
I can use this camera with ALL of my vintage glass including Nikkor AI and NAI MF lenses, Helios, Pentacon, Zeiss, and INDUSTAR, etc. All that's needed is a simple adapter and each of every one of theses lenses benefits from Sony's 5-axis in-body image stabilization. the shallow depth of the camera body ensures it's compatible with virtually every 35mm camera lens ever made - something that I ran into trouble with on my D810 because Nikon actually has the widest body of all camera makes. My M42 mount lenses (for example) would have to be mounted slightly inside of the D810 body to get the right magnification and infinite focus. And that's not even an option because doing this risks destroying the mirror. Even vintage Nikkor AI and NAI lenses can't be used without fairly major modification which also ruins the lens value.
A lot of people seem to really dislike the A7 line UI. I personally kind of like the interface. Maybe it's because I work with a lot of technology, but I find it pretty simple to use and after owning my camera for a few weeks have the placement of everything committed to my long-term memory. It also looks more modern than Nikon or Cannon's UI. It might seem a little segmented at first, but in the end, everything kind of makes sense as a whole so I'm counting it as a pro.
Love that Sony included two batteries and a charger. This really makes me feel like I bought a high-end camera. If they'd throw in a screen protector (see my grumble below), I'd be completely happy with the included accessories.
Cons:
The battery life could be better
I'd love to see the build quality be just a bit more robust. I.e. I wouldn't take this on out in sub zero weather, do a photo-shoot in a sand storm, or bring it with me white water rafting. Even decent weather sealing would be a nice gesture.
This one is probably on the top of my list - I'd love to see dedicated controls for all major settings that I use every day. I can set the aperture from the back dial and the exposure from the front dial, but it would be great to have a control for the ISO. I virtually always shoot in full manual mode and having to right click on the wheel to bring up an ISO dialogue before selecting the ISO is just the tiniest bit annoying.
The camera should come with a snap on screen protector like Nikon provides. When you spend this much on a camera and don't get basic protective equipment, you feel like Sony is being a tad on the penny pinching/apathetic side.
Some tips:
Knowing how short the battery life would be I loaded on six batteries and bought a grip for the camera so I can use two at a time. With the grip I can shoot about half of what I used to get away with using my D810, which is workable
Get a good protective carrying case/backpack for this camera to keep it safe.
My final verdict:
It's overall the best camera I've ever owned. While it is quirky in some way, some of the quirks are starting to grow on me. Now we'll see about longevity. The shutter is rated at 500,000 actuations (which isn't everything), but I'm hopeful.
