I originally bought this for outdoor acoustic gigs where I knew there was no power. I wanted to plug a guitar into one input and use the wireless mic and be able to use the built in echo for both. The echo is barely usable; it doesn't sound great and not very tweakable. Also it only works on channels 1 and 3, so if you are trying to use a mandolin or 2nd guitar and go into input 2, no echo. Also, input 2 is a 3.5mm line level input. I wish it was a duplicate of input 1. The EQ is overall, so if you tweak it up for the guitar, the mic may not sound great. The wireless mic that comes with it actually sounds very good. The battery only seemed to last about 6 hours, not the advertised 12. You can bluetooth your phone to it to play music and use the mic to sing along with it, so instant Karaoke machine. Sound quality overall very good. Lightweight and loud enough. The ducking feature is cool but I wish it would take a little longer to release, so as to better handle the pauses in normal speech. In summary, if the mixer section was better, this thing would be perfect.