I'm glad I didn't read the reviews on here before purchasing this shampoo otherwise I may have been scared off from trying it.
I've spent the last few years trying and failing to grow my hair longer than shoulder length, but I would quickly get split ends. I used some pretty high end shampoos (Matrix, Goldwell, Kerastase, Joico, etc) and hair masques to combat this trend but my hair would get really brittle and I'd have to cut it and start over.
I have very dark hair and the ends have a little blonde in them so this makes hair quite dry.
Cut to when my mum last went to the hairdressers who swears by Davines hair products. No sulphates, no parabens, just good quality shampoo. I bought a 1L bottle of Nounou shortly thereafter as I'd heard sulphates can dry your hair out.
Results:I've had it for about 2-3 months now and my hair is past shoulder length and... no split ends!! I use conditioner/masque on it everytime I clean it (L'Oréal Expert Intense Repair Masque and Goldwell dualsenses rich repair 6 effects serum). I also want to mention that I can go 3 days without washing my hair now rather than having oily roots pretty much every day.
Lather: It doesn't lather like typical shampoos - so if you crave lots of lather, stay away. It does lather a lot compared to other sulphate-free shampoos I have tried though. The trick is to apply the shampoo the second your hair leaves the shower water, so that there's plenty of water to lather with. I put product in my hands, rubs them together, and try to place it strategically on my head (front/back/sides) and start massaging it in the scalp.
Smell: Quite subtly floral. My boyfriend is a bit picky about smells but he likes this one so has now started using it too. My conditioner and leave-in conditioners have different smells mind you so I can't comment on the lasting power of the smell of this shampoo.
Price: it's expensive. I really recommend getting it on sale. If you like it after you try it, buy the 1L bottle, it'll save you moolah.
I'm on a Davines binge now. I've just purchased a 1L bottle of the Oi Shampoo and leave-in milk. I've heard great things and can't wait to try it!