One of their big sales pitches was that they didn't offshore any of the work, it was all 100% local. But they'd hire a bunch of interns to do the work, and pay them next to nothing.
In fact, the coding assignment for the interview was a client's new website. On the day I started, my first task was to finish up my coding assignment so they could sent it to the client.
Being an intern I was slower, and produced lower-quality work. All my forms would submit using GET requests instead of POST. If I had to modify how the CMS worked, I'd just modify core code instead of making an add-on. I'm sure that caused confusion when the next upgrade wiped the custom code!
And apparently it was one of "the good" digital agencies...