Haven't tried the Old School, but I did sample one of their 120 IPAs and holy friggin crap was that strong! Probably the first time the hair on my neck stood up when I took a swig of "beer."
Fine for sipping, but not something you'll find me drinking at a party where food is being served. Dogfish makes fantastic stuff, but sometimes I think they go a little too far out of their way to be an eye catcher. Like that peach beer they made, ugh.