In the Northeast we're completely deprived of delicious Double-Doubles, and while there are still options for good burgers up here, their absence is noted. There is simply no other burger quite like an In-N-Out burger.
There's nothing I can say that hasn't been said by many before me. In-N-Out is legend, and justifiably so. Whether or not there are comparable burgers out there is irrelevant, because they're not In-N-Out burgers, which have a unique taste all their own.
The Chandler Boulevard location is the only In-N-Out I've been to, frequently when I lived in Arizona, now much less that I'm in Massachusetts. It's clean and nails all the characteristics one would expect, and offers the pure deliciousness that the Western U.S. covets.
It's an In-N-Out, and that's really all that matters, isn't it?