Brilliant reverb That is as good as the Strymon Big Sky for a lot less money.
I know that is a big statement but the tones back it up as long as you don't mind the slightly fiddly unit menu all the sounds are there plus a few that only Boss have. You also have a classic Boss digital delay which you can use with the reverb in series or parallel routing or on its own. you can also have two reverbs (room, hall, plate & spring voices only) at the same time either in parallel or using a frequency crossover.
The downloadable software works easily to get around the fiddlyness and makes dialing in tones really easy.
Only downside is as standard the tones don't come out as lush as the strymon out of the box so do need a little tweaking to get how you want.