Glad you appreciate it!
(I'm not sure how to address anyone who desn't think this "is Rebol" ... when it solves precisely the problems which were being contemplated in R3-Alpha, with clear and targeted solutions across the board.)
It's fun when things work. 
Maybe it will tempt you into revisiting some of your old code someday--or writing some new code.
It's going to be very powerful... and it should enable Redbol emulation to come back.
e.g. the Redbol lib would have definitions e.g. for QUOTED! to quote and bind... and for PATH! to analyze itself and rewrite as TUPLE! or CHAIN! if need be, then retrigger itself inline via an INLINER
Emulating historical Rebol and being able to do the %pdf-maker.r or similar would be pretty epic!