Just bumping this back up to say that I've been using the QC in 4cm and getting great results. Getting the input level right made a big difference, in terms of feel/response.
Pretty limited effects-wise though, but the ability to capture my favourite two drive pedals makes up the difference, for me. Also helps that my main modulation is usually a Phase 90, and I love the QC's version. Rest of the stuff does the job and I'm not too fussy about it (chorus, flange, basic delay).
What I do miss having is a really great tape delay, though. I've gotten the QC closer, but I can't say I don't still long for the HX Transistor Tape, at times. May just bite the bullet and put my Stomp with it again, or grab an HX One.