I've owned the V1 Groove Regulator as well as a V2 Proton, whatever version of the Wonderlove was purple with gold'ish lettering, and currently use a Chromatron. To me, yes, the V1 Groove Regulator is still an excellent pedal. Out of the ones I've owned I'd say that my old Groove Regulator is my second favorite only losing out to the Chromatron.
Thanks for chiming in @silky smoove. Glad to hear that his earlier models still hold their own to latest offerings
(the Chromatron does seem to be a beast of a pedal, though).