I know what you mean about the Mustang - I haven't really got to grips with either the V1 or the V2. I've tweaked a few of the presets to give me some sounds that I like, basically either totally clean like the 65 Twin or with a completely wound up 'British 80's', or JCM 800 as we used to call it, which to my ears is rather nice. Given that the V2 even has a wah wah via the expression pedal I hardly ever plug the Cry Baby in any more either.
Anyway, the Tagliare. I just didn't like playing it, even after spending not a little time and effort setting it up. The tone was just too maple fingerboard Strat jangly for my liking. I mostly play the Epi and the HB L-1000, with forays into Squier Strat territory from time to time. IMO the Squier is a far better guitar than the DZ, plays better and after the addition of the Wilkinson hot pickups sounds miles better too.
The Novation is a MIDI controller for DAWs.
I've ordered it from Andertons, so we'll see how it goes . .