I've had this wireless system for a few months now and it's not let me down so far. There have been no issues with interference, even when using an active bass, which I suspect is where the 5.8ghz frequency helps.
The carry case which doubles as a charger you can use on the go is also super handy if you forget to charge the transmitter and receiver before heading out. I've been able to use the system for 3-4 hours before the charge finally ran out - plenty for pretty much any gig.
The kit is also super easy to use - plug the transmitter and receiver into the respective inputs, press the button on the side of each unit until the lights turn green and away you go.
I was sceptical of purchasing a wireless kit for what is overall not a lot of money as they have a reputation for being of poor quality unless you spend a decent amount, however I've been pleasantly surprised by the Nux C-5RC and would replace it in a heartbeat if it was ever stolen. I don't go crazy with moving all over a stage but not having to worry about tripping over cables means I can focus on playing.
Highly recommended.