I'm not saying it doesn't work, I have a Gore cycling top now. It does work, not as well as they'd have you believe and once it's had some good wear, the performance goes down considerably and it becomes very important to keep it coated so it doesn't wet out but any other breathable will work at similar levels once used. Longevity is also an issue. I've sent two Goretex shells back because they failed within the warranty. I don't buy Goretex anymore for walking shell jackets but I think the thinner lighter jackets you need for cycling are still better in Goretex due to lightness and pack size and probably have a similar longevity to anything else that thin.
Edit: And it's not good enough to warrant the premium it attracts compared to say Lowe's ceramic technology.