I voted 1 month because that's about how long I've been using my Tigi Amplifier. I think this product is my HG as it's consistant with curl definition to my hair. If I re-wet the next day I get great 2nd day hair too.
It also doesn't make scalp itch nor feel like it's attracting gunk to my hair which has happened to me with other products.

Now...this of course does not stop me from trying other products that I read about here! :-) Garnier Soft Curls was on sale so I bought some and whilst it's not bad I'm probably not going to buy it again.

And next month I plan on buying the Jessicurl sample pack.
3B/3C
No more PJ tendencies. Tigi Curls Rock Curl Amplifier is the best thing to make my curls rock all day! Next best are KCCC and Re:Coil +HE TT Gel.