Monologues look really nice - they seem to me to be like the old Electribe EA1s but actually sounding good this time. They do the Aphex Twin micro tuning, what practical use this has I don't know but synth forums are going mad for it. I have the Minilogue and it's a lovely, very versatile sounding, and veryfun to play but of kit so I'm sure you'll enjoy the mono.