What I like about this is the acheivement, it's something that took a strong will, brass balls, and a very clever bloke. I'm not saying it's a nice thing to do, far from it, but think about it :

People get stabbed for their wallet contents, sometimes less, every day.
Armed robberies worldwide involve fatal shootings for less than 1% of £52mil
Petty criminals beat up homeowners for the price of a fenced Samsung
People get beaten up on Saturday night just because someone had a bit too much to drink

And they went in there and pulled off Britain's largest cash theft ever, £53 million quid, without leaving a mark, in this day and age. That's why I think it's impressive. And that's why a large part of me hopes they get away with it.