Thank you all. I appreciate your thoughts and encouragement.
I don't like the "filler" either... makes me uncomfortable to sort of rest on my laurels...
On the other hand, there are some electronic pieces out there that manage to find a good enough groove that you just... aren't in any hurry for it to change.
Anyway, I appreciate the reviews. Thanks very much.
For the curious, I mostly used my Motif XF8 and Omnisphere for the sounds on this track. Many of the sounds (including the pad playing the chords) were my original programs. Used Stylus RMX in kit mode and Groove Agent One for the drums, and threw in some highly compressed drum sounds from Superior Drummer for the big finish.
I tend to shy away from any arpeggiators, flex phrasers or even preset drum grooves... I like to create all that from scratch. Although I would never slight anyone else for using them, I sort of feel like it's cheating if I don't program it all myself. The luxury of not trying to do this for a living I guess--cuz it takes me forever.