I tried Portillo's twice in Orlando, had the sandwich both times. Not my thing, wife didn't like it, so it's out. Might give a shot at the burger deal maybe though, we're headed down on the 2nd.
I see they are opening some here as well.
It's kind of interesting how a local chain at some point tries to expand, like Chick-Fil-A did with success way back. They used to be all local and all in malls.