I only been working with the H90 for a couple of days. Already made some nice programs /presets, bass and synth patches. Its limited in the synth dept. but I made couple of usuable synth bass and other synth patches. Certainly an improvement on what it comes with.. I did discover I needed to switch to line input for my active bass, no clipping and synth works better. One thing I have noticed is that the unit seems to be too bright. Bass guitar straight thru sounds like too much treble. What the H90 would benefit from is a Global eq (like on line 6 HX devices).