Started CG in July this year (even tried water only) and I had enough. My hair doesn't look as awesome as when I first started. Just did a sulfate wash and silicone condition today and my hair looks back to good ole normal!
It wasn't a waste of time though I have learned lots of stuff like not use so much shampoo and that just because it feels oily in the shower doesn't mean it will be greasy once it's dried.
Maybe my hair will start looking crap again after using shampoos :/