I've made some stunning wines, but they were not from kits.
I believe you can get passable results with some of the high end kits that are provided with a lot of pure juice and some skin packs to help the vinosity along.
My favourite that I made was a plum wine, it was about 10kg of juiced plums and then water and sugar to bring it up to where it's needed.
I made a grapefruit wine that the ladies went mad for, a black tea wine that my wife loved and then a banana wine which turned out very well after two years.