Hi - lead singer in my band bought one ~4-5 months ago; he's used it on a number of our gigs [Hmm, what's up with the word GIG?! I must have missed that conversation :-) ] ... he likes this monitor/mixer; he uses it just as a monitor and mixer for his guitar and vocal, sending its output to the board. Took some fiddling to get the signal levels all right (to the band's board from the unit, and mixing his vocal and guitar levels etc.) but that was just 'learning curve' I suppose.

I haven't used it directly myself, but he gives it high marks, he told me, for ease of use and good sound quality ...

-Jim