Smoothness of a test strip might be subjective, but so far this ABW with the Eboni-6 setup (draft PDF at http://www.paulroark.com/BW-Info/3880-Eboni-6.pdf) (and probably any other high-K monotone) seems to be the smoothest print I've seen on a matte paper. It may be the driver is using only the smallest dots and maybe some different dithering pattern.
On Epson Hot Press Natural, I'm getting a 1.78 dmax, which is higher than the "color" Epson driver output and probably on a par with QTR.
The sharpness of the test strip is due to my use of a low res test strip combined with what looks like "next neighbor" up-res'ing to the native printer resolution. I could get the same look out of QTR by using PS to do a "next neighbor" image size increase to 360 dpi.
And ICCs (made via QTR Create ICC-RGB) work fine with Win7, PS CC and ABW.
FWIW
Paul