One thing I think helps: I've had blank keycaps for the better part of the last decade. There's at least no visual cue saying this key does that thing.
And now, I switch between my primary advantage layout to laptop keyboards (I have a few) all the time. I think all the switching between layouts just makes you better at whatever. I'm a pretty fast typer wherever I end up and getting used to a new environment is kindof fun.
I would totally buy this keyboard if i was still using a standardish layout. I love the advantage so much i can never go back.