I primarily bought my Helix to replace my pedalboard of effects. The Helix UI is ultra flexible for this purpose (movable effects blocks, parallel signal paths, footswitch assigns, etc, etc) and the effects themselves sound great.
Live, i'll use the Helix into my amp (a Fender 59 Bassman), but for recording purposes i'll use the Helix with its amp/cab blocks to record direct into my DAW.
The icing on the cake would be for Line 6 to now incorporate some of the effects utilised on previous products (i.e. Reverse delay, Octaver, etc)