The only reason I've retoured the MiniFuse is because - my bad! - I figured that I needed more outputs. I was "chaining" multiple external effect boxes (amoung which the superb NightverB - check my review) but this didn't prove effective. So I'm upgrading to a Motu with more outputs and will probably buy the Arturia AudioFuse X8 for more inputs via ADAT (and will review both units in due time).
By the way: I think Arturia should have added ADAT connections, so the MiniFuse could be extended with their AudioFuses - a missed oppertunity, in my perception.
It's a big plus that the MiniFuse is adapter powered, so this way you can jam without a computer connected - though I didn't figure out how to use outputs 3 and 4, connected to my outboard, this way. They work fine in my DAW though, set up as return channels.
Surely by now I hold the record of returning the most products, so a big thanks and sorry to Thomann :-) The least I can do is write a review in return.