I have the non-Bluetooth with Brown's... really solid board. The layout is very well thought out. I've personally found the small right shift and backspace are really easily adapted too and the function layer arrows are smarter and more natural... that and the function layer backspace make this a keyboard that rarely has you leaving home row. I switched the backspace to prepare for my incoming hhkb.
If you can live with the abs key caps, it's a great, solid board.