I think the F4 is a great design, probably the last of the "knobs and locks-on-knobs" UI bodies from the Nikon pro-line. However, with no removable motor-drive, and even the smallest battery being quite large, the F4 was just too big for me and I stuck with my F3/T. Yes, would have _loved_ the F4's matrix-metering, better finder, and (primitive) AF capabilities, but I just wasn't willing to carry around such a big body to get those features. Also, I'm kind of "all in" with my complete collection of F3 finders and accessories, and the F4 finders were _very_ pricey in the day.