You know - I run this straight into my Hartke TX300. That has Drive and compression, as well as a shape control + EQ. I really like the sound of the Hartke period. Just good all around for whatever. I might like the Hartke Drive better than the Scrambler. When Live with the board, I wouldn't use the Comp or Dist from the Hartke.
Hartke Drive = Smooth / 100% wet
Scrambler = Raw / Blendable
Hartke Comp = 1 knob. It works ok
Boss = Level/Enhance/Ratio/Threshshold. Primarily a limiter, primarily what I need.
That said - punching in the Ampeg Preamp gives a really cool sound into the Hartke. I was surprised at that. In guitar terms it would be like running a JMP1 into the front of a MESA Recto head. That would be crap....
But for Bass, it seems to work. Gives me an alternate sound on-the-fly. So with my current rig, I could use JUST the board and DI, Board + Hartke to cab, Hartke only to Cab, or Hartke DI too. Little bit-o-gear, lot of options....