Now that I have a figma, revoltech, figuarts, and a figutto, I can do a size comparison. If you're as particular and finicky as I am, it's important to know as much as possible about a figure before buying it. So, for your convenience, here's a pic with my Figuarts Goku, Figutto Reimu, Revoltech Yoko, and Figma BRS (feel free to click it to enlarge).
As you can see, it's a good deal larger than a figma, but about the same size as a Revoltech or an S.H. Figuarts. She's about as sturdy as the Figuarts, too, which (as anyone with, say, a Kamen Rider can tell you) is very. Much more relaxing to pose her than a Figma, as I'm not worried about a leg snapping off at the slightest wrong move. She has me really excited for the upcoming Figutto Marisa!
I think I might venture outside, in public, to the park tomorrow morning to take some pictures with her. It's right by the house and hopefully there aren't any people out on a Friday morning. So, uh, look forward to that!