Just to make a small point the Spectro in the printer is a real spectro. It produces measured results that generate profiles just as good as the DTP70, which has made more than a few good profiles. also the number of patches can make a difference...but the profiling software really is the magic bullet. It also depends on what you consider good. I tested the Z3100 using GMB, Monaco Profiler and Easy color. They all delivered good results but each had their strength, to be honest for photographic output the easy color profiles are quite good on most media. Colorbyte's profiles are very good for photographic work however this is because of their work in linearization, screening, and profile building work...not just the spectro used. I'm not sure the APS is worthless, in fact i think it's decent software...however I am tending to agree that it should have been included in the package(minus the eye1), or at least some sort of export option that could be used with other software packages.
Julian Mussi