I've still got mine, but I haven't powered it up for quite some time. At the moment it is supporting the synchronizers in the rack above it.
I sort of drifted into recording songs, so at first it was very useful. By my second album, I'd learned to hear the artifacts it was causing, and by that time my pitch had improved enough that I was able to do without it for the most part, relying instead on the tried-and-trusted technique of 'keep redoing it until it's right'. That said, using it on the harmonies in an 80s-style song produced a rather interesting subtle effect like it had been put through a vocoder (no, not the 'Cher' thing). I quit using it after that though. I find it difficult to actually ditch things though, so I haven't sold it. But I guess I ought to.