Well, I got my B&W G3 because MacOS 9 lunched the filesystem as it was prone to doing. SCSI drive so it wasn't that other disk corruption fun (which I went through in PC land). As far as I'm concerned MacOS 9 was mostly a bunch of paper cuts glued together. Lots of stuff that would've demoed in OSX if Apple had the time and patience.

So yeah Apple had tacked on vestigial multi-user support, an automatic system update mechanism, USB support, etc., etc. but underneath it was still the same old single user, cooperative multitasked, no memory protection OS as its predecessors. Unlike OSX, MacOS 9 (like 7 and 8 before it) still relied on the Toolbox which was a mishmash of m68k and ppc code.