Fun Generation AirZone 5.8Ghz Instrument

In the past, I've tried lightweight, inexpensive transceivers belonging to friends and been very much unsatisfied. I've also long had a love/hate relationship with wireless - the freedom is wonderful, but the sound and performance infuriating.
But, for this price, worth at least having a go, I thought.

The short answer - fantastic. Reasonably fast charge, a good three hours or more continuous use (fine for gigging), faultless transmission, and sound quality equal to a cable.
I can say this, as I did a test sending white noise from a synthesiser simultaneously via a short balanced-line cable connection, and via the wireless. Using a Match EQ program to show up any differences, it revealed only a slight roll-off (around 0.5dB) below about 50Hz, and the same at the high end, about 18kHz. That's virtually undetectable through guitar amplification - and better than the response of any unbalanced cable over about 2m. Fab.
Despite what some misinformed reviewers have said, there is no detectable latency; probably those folks were confusing latency with the difference between the speed of light and the speed of sound. :)

Impressive enough and ridiculous for the price, so I bought a second (for the piezo out from a couple of my guitars).

Without mentioning any names, a few years ago I bought from Thomann a bug-and-floorpedal set from an internationally famous audio manufacturer. That takes 3 hours to charge, plays for about 2 hours, the bug failed within 6 months (Thomann replaced it) and within another 6 months, the replacement failed. Same problem - poor design of the "swinging" jack in the surprisingly cheapo bug. I've subsequently repaired that a couple of times myself, including also curing the battery charge monitor calibration. On the plus side, the tuner floor receiver is paradoxically bombproof. But that cost me over 300GBP!

The only drawback with this fantastic value wireless kit is the silly name "Fun Generation". If you're wavering, buy one.