Well it depends, B&Ms are well known for reliability. They're obviously 'built to last' and are a very good quality product and ride.
Whilst they're known more for their thrill coasters, I bet this is a great family ride. A long time ago on TTF I remember a discussion where myself and another said that B&M building a family coaster shouldn't necessarily be thought to be a 'never never'. Of course, 13 wasn't a B&M but widening their potential market can only be a good thing.