They're great! Lather up some lanolin on them and put the softshells on and you will feel better in no time. They're not complicated at all. Also they make a kind for inverted nipples that helps draw them out that work great too.
I used them for latch problems in the first few months and then used one again for a short time when LO cracked my nipple by biting it. That helped it heal without hurting as much. Haven't used them in about six months. They worked great though.
Re: Medela Soft Shells for Sore Nipples ??