I’ve bought it mainly to get a good always-on compressor and an amp/cab simulation. I like the sound of those a lot. 
I am pretty happy with the octaver, chorus and phaser effects. I never use flanger and delay. 
I don’t like the distortion effects as I can’t seem to dial them to my liking - they are either too bland or too over the top. I much prefer to use the distortion from the amp simulator stage. 
The overall downside is volume inconsistency. When I adjust the compressor, octaver, and distortion knobs the volume increases a lot and it’s not possible to adjust it without affecting the sound (because it is done with either amp gain or master volume). 
This is somewhat doable using the companion computer app, where you can adjust each amp and effect in much more detail including staging the volumes. This was however surprisingly a lot of work when I set up a couple of presets to use instead of fiddling with the knobs on the spot. I made a clean, edge of breakup, chorus, octave below, octave+fuzz presets, which sound good on their own, but getting them to similar levels was surprisingly hard.
However, I found myself wishing I could dial in a bit more or less of something when playing live and I couldn’t because it would disturb the levels. So I have to stay on my presets.