I personally love my Pyrahnna Fly spray. Yea, it's a tiny bit costly, but we tend to use our own spray bottles (there's do kinda suck...) and just get the bulk refills, and they save some money. But it works *really* well ;) The change is really dramatic. They go from a constant side to side tail swish to a dead tail, and no stomping. I use flymasks, not spray on the face, so no comment there. The only major problem I find is that it. Smells. Horrid. SUPER chemicaly.
I DESPISE this stuff called EquiSect. Yes, it's good for the enviroment, less chemically, but it repels ... nothing? And it lays on the coat like soap..?