Worth bothering with?

Amazon have thrown a 3 month free trial in with a recent purchase. Does anyone still use this, I seem to remember it appearing on Watchdog a while back which may have had more to do with the bullshitters who were selling the service in shopping centres (possibly before amazon got involved).

Will just sack it off now and not bother if it's likely to be a ball ache later down the line, but could be useful if it works like it should. So good/bad stories please.

Ta