Thanks all for the info. I already have a Filco tenkeyless, so that's hard to beat.

I'm close to ordering one Unicomp, so I was considering the details. I prefer the Customizer over the SpaceSaver because it doesn't have useless OS keys, and thus larger and properly centered spacebar. And yep, the space wasted on the Customizer is bit more, but seems the SpaceSaver doesn't win much. I've misread the 20% figure.
SpaceSaver has one more negative - the plastic cover of the EnduraPro mouse buttons. It will collect dirt, and be probably felt by my nervous fingers.
Right. Have to rethink once more how bad I want a BS. Anyone to offer me a reasonable NIB Model M Space Saver?
