We use ADJ WiFly in our musicalsetup on pretty huge theaters. All our movingheads, par ligthing, even haze are connected to approx five ADJ WiFly recievers in all.
Distance up to 50m, and there has been no dropouts ever. It just works. Plug and play. Once you have the frequenzy synchronized, you are all set to go.
And saves us tons of time, when we do not have to run long DMX cables and makes setup smooth.