The A7Rii is a wonderful portrait camera. The enormously detailed files allow one to soften parts of images in order to enhance the look without losing the plot. The ability to punch a button with my thumb and have the camera focus specifically on a eye is also a huge sigh of happiness and relief for any photographer vexed by years of DSLRs front and back focusing on beautiful faces, rendering hours of work ultimately unsatisfying. I wish Adobe's Camera Raw would read the correct camera profile I've set instead of defaulting to Adobe Standard, but it's simple enough to change.
The nice realization for me yesterday (and working with the files today....) is how much I like the look and feel of the Sony 70-200mm f4.0 G lens. I know everyone reflexively ponies up for the faster, f2.8 lens but I think they'd mostly be happier with a lens that's half the weight, much smaller and at least as equally sharp. I can't imagine that the difference between f4.0 and f2.8 is critical in zooming applications. If I wanted to get less depth of field and still keep things sharp I'm pretty sure I'd be reaching for something like the 135mm f2.0 instead...
At any rate working with the files of someone you really like is such a pleasure. Especially considering that most of our work is the business of meeting strangers, trying to find some sort of connective intersection in mere moments, and then handing off finished images to someone you might never see again. This is, of course, the antidote to that, and the kind of pleasurable occurrence that keeps me making portraits. The most important tool in making portraits might be conversation.