As with many of the Boss pedals, this thing does what it says it does. It's a pretty reasonable chorus pedal and a solid buy if you're looking to move into the world of chorus pedals.
Sound wise it's on the mark and is a pretty convincing sound. Not going to make anyone wet themselves with excitement, but how many chorus pedals do? It had a little difficulty thickening the sound of the lower notes of my bass, but perhaps that's a good thing to avoid muddiness. If you need something specialist you'll need to actually try a load of pedals, but this thing is pretty good all round.
Physically...it's a Boss box. We all know and love them. They're all sturdy and all nice and compact. Would like see it come with a power supply, but that's an issue with Boss across the board.