Charleroi is my darling

This article in The Guardian caught my attention on Saturday. I have visited most of the large towns and cities in Belgium, but was advised by my friend in Brussels never to go to Charleroi - 'Charleroi stinks' was all he would ever say. It seems now that this run down, ugly and depressed town is trying to attract the 'crap towns' tourist; this tour sounds fascinating and I would love to go on it.