Depends which version you're talking about. The 'regular', non-pro HHKB is not a quality item and uses very cheap keyswitches. The HHKB Pro / Pro 2 uses the highly-regarded Topre keyswitches but this is reflected in the price. The layout differs slightly, too.
I own two HHKB Pro 2's and absolutely love them. The quality of the keyswitches is pretty much legendary by now, the build of the keyboard itself is decent enough but nothing to write home about. It's really all about the layout and the Topre switches.
I own two HHKB Pro 2's and absolutely love them. The quality of the keyswitches is pretty much legendary by now, the build of the keyboard itself is decent enough but nothing to write home about. It's really all about the layout and the Topre switches.