Believe me it's unusual for me to go for the expensive option in life, in fact very strange indeed. But in this case I believe it's the right option for me.
It's simple to edit effects and patches without recourse to a computer, I believe the effects I use most sound better than my other Zoom pedals, the big screen is visible to my lousy eyesight, the tuner is excellent, the effects bypass switch a good addition, the overall tone and volume controls with real life knobs priceless, the DI out useful for me, two inputs useful for me, the different colours for different effects being mirrored on the switches is great on stage, the effects loop a welcome addition, the scene mode for songs is cool.
It ain't perfect. I'd have preferred an expression pedal built in like the guitar model has, I'd have liked a couple more foot switches - but four is actually ok for me - and the DI switches seem not to make much difference to my ears. It's a bit big but I'm old and short sighted so that's ok.