Obviously hair products ARE different otherwise we would all be using the poundshp 10 for a quid and have gleaming tresses but we don't have.
I tried the KP shampoo and conditioner and it did nothing for me. Haven't tried the elasticer (even though I got a freebie) as I just don't have the hair washing regime which allows all that time and faffing so I can't pass an opinion on that.
I have tried cheap, expensive and all in between and only Pantene (and only one type) tames my hair which luckily isn't expensive but for every 1 who likes it there will be 10 who will hate it.
This week I was up close to a lady I usually see only from a distance, and noticed that her hair was like Worzel Gummidge, now I can't believe that she wanted it that way, it's just she hasn't found THE one to tame it, and it won't necessarily be one anyone here uses. Luck of the draw. Others can use any old thing on the bathroom shelf and have no problems.
Just can't generalise.