I wanted an effects unit with good vocal doubling feaures so that I'd not have to actually double-track and then bounce the two tracks to one to make room on my 8-track. To be honest, this BOSS unit was not my first choice. I was trying to get ahold of either TC Helicon or a TC-Electonix unit - both of which turned out to be discontinued and unavailable. But BOSS has always been a solid choice for most effects, so I went with this VE-1. It dod not disappoint. It's easy to use, has some excellent reverb options, and the doubling really thickens my vocals. So far, I've used it for one song and it sounds great. Can't wait to put it to use more in the near future.