Just have to comment on this, because I was really disappointed. I was in the mood for a nice fast-food style burger last night and Flat Patties was very out of my way, so I popped into the Dedham Five Guys for a bite. I've had decent experiences there in the past with burgers that were good and fatty, though I find their beef fairly bland. This time, however, the single patty (which I prefer to the doubles) was absolutely dessicated. Not a drop of fat or moisture left in the thing. I always enjoy the classic architecture of the Five Guys burger, but with such a small, dry patty this one was really pretty bad. I've never loved Five Guys, and after this I'm pretty unlikely to seek out eating there again. That said, the fries were excellent, as usual.
81 Mount Auburn St, Cambridge, MA 02138