In 2013/2014 I was a traitor. I let the BOSS pedals in the drawer and played with ZOOM multi-effects, first the 506 and then mostly the 708II. I do love the 708II, really a great multi-effects unit, with Oberheim-like polyphonic synthesizers (really polyphonic, with a perfect tracking) and very good effects of all kind (with stereo/pan options), it's easy to program (choose a basic sound, choose an effect of each type, turn the knobs just like a single pedal for each effect) and with a memory card you can store up to 300 user programs. I also really like the "industrial" orange/grey look. Expression pedal for Wha or modulation (rate...). And last but not least : you've got a drum machine inside.
The 506 like all the ZOOM "500 series" is very simple to program, sturdy and good looking, and hide lot of terrific sounds.
708II demo, with effects (drum machine examples inside) and synth sounds I programed
https://www.youtube.com/watch?v=71qbJff4VI8
506 demo
https://www.youtube.com/watch?v=VDyeaHaB6ac
I finally returned to BOSS, because the SYB-3 and the DD-7 sounds are so beautiful. I think I needed to explore something else in order to rediscover my BOSS pedals. I also never really played with modulations-type effects (chorus, phaser, flanger, etc) and wanted to try. Now I know what I really like. And you know, BOSS never released a ME-30 multi-effects for bass (the ME-30 is incredible, I played with a guitar player who had one, trust me it's really great), and the ZOOM 708II is like the BOSS ME-30 for bass guitar in a sense.