I have both the Dapper and a couple of MS60b's (as well as a number of stompboxes), and I concur with the sentiments in this thread. For exploration of effects, the zoom range is brilliant, even the lowly b1on has the same algorithms as the B3 and MS pedals.
I bought the Dapper as an alternative to carrying a backup amp (can DI straight into the desk) and as a small, quick and simple pedal for those gigs I only need a couple of sounds for (always on compression, chorus and drive*), and it does this task admirably. I tried using the MS60b as a standalone pedal, it sounded fine, but it's not the most user-friendly pedal to use on its own as you need to save patches for different effect combination and scroll through them, making turning one effect on and off during a song a bit of a faff - the bigger zoom pedals don't have this issue.
*although I may start to use my EHX Bass Soul Food alongside it, as using the Dapper amp section as an overdrive gets a little "flabby". The compression, however, is excellent - in fact, I'd love it if they made this effect in a single stompbox.