In theatre we employ somebody to mind radio mics - their job (known in the UK as the A2) is to manage batteries, fit the mics, continually monitor the receivers, to head off problems and watch for interference. Adjust the placement when they get knocked, and apply metres of sticky tape to keep the damn things in place. It's evolved into a proper job, and shows don't start till the A2 is satisfied they're all working properly. Almost every show something happens. Go below 12 or so and the finance for an A2 is usually a bit shaky. and then they really cause grief.
For live work they're essential, but for recording I'd have a wired mic every time if at all possible. RF is a permanent disaster waiting to happen.