All of this may be true,but I have never experienced ANY interference through my G30,nor has it interfered with any of my other home electronics (mobile phone /laptop etc)
in the 2 years since I got one.
For that alone it gets my recommendation,apart from the fact that it is better than any other wireless I have had.
FYI its the only system that has been succsesful with piezo pickups plugged straight into it-no buffer amp needed.