I'm not a frequent shampoo bar user, but my husband loves the bars that I buy for him from LUSH. I know that all of them are SLS based (except the new sulfate free 'Squeeky Green' one), but honestly, I find them to be quite moisturizing. When I do use one of my LUSH bars, I usually reach for Karma b/c it smells so good, but it also feels quite moisturizing. I usually never have any tangles with it.
I love the fact that there is no packaging... environmentally friendly and that the bars are fun to use. Actually I would like to use my LUSH bars more often but I only wash my hair on days that I swim and for that I use a chelating shampoo.