This little thing does exactly as it says on the box. It's so incredibly easy to use, sound quality is great, latency is unnoticeable and the range is huge for such a little unit.
Highly recommended, don't know why you'd ever use anything else. They're a little plastic-y, but they don't feel flimsy at all, and most importantly they just work, and they're very discrete since you can freely choose angle and position when plugged in to the guitar.
So all in all: Easy to use and it works great.