Sorry to be the smart arse, but the only problem I've had with See was with Wembley '07 tickets, and that was down to bad traffic, otherwise I've had pain free experiences ever since.
The Resistance tour was a doddle and so was Wembley and LCCC, I had my confirmation e-mail with me by 9.20 and the money was out of my account by the time I got home from my lectures and 12pm.
Obviously people have had bad experiences, but they're not all that bad.