BAe at Barrow use a bottle of beer rather than champers, I'm not sure if it bounced on Astute, but she certainly had her run of bad luck, ran aground in broad daylight during sea trials in 2010 where all and sundry could photograph her, then had an Able-Seaman go on a rampage with an SA-80, killing the weapons officer and injuring another officer, and then in 2012 she had a major leak and had to perform an emergancy surface.
However, once she sorted out those problems, which I guess are traditional for a lead ship of a class, she's made a good name for herself, giving the USS New Mexico a hard time during trials in Feburary 2012.
So, I'm sure the Washington will do fine.