Everything seemed fine, at the beginning, I tried it home and it was working well, I was impressed; sound was alright, cool investment perhaps. I took it to a small gig, which I thought was a good test for live situations, it worked well in the first one but then after a second session close to the end, the battery ran out, I plug back a cable to continue and that's when I noticed - the signal wasn't strong enough while playing - since I played most of the gig I didn't notice until I plugged back a cable or perhaps as the battery slowly run out, it was losing strength, but all of a sudden I could hear myself better... I thought: well that's a 1 for cables - 0 for the wireless!
My conclusion so far, like many others, I think it's good for playing at home, in a studio, rehearsals or perhaps some small gig that doesn't required such a big performance , casual gigs, but it is risky to take it to more serious live gigs, since there's the possibility it will stop working while playing without a warning.