Terrible.
I'm sure it's probably just this location, but almost everything was wrong.
We ordered the chicken strip meal with a sweet tea, a small frozen blue raspberry slushee and a small classic limeade slushee. As we pulled up to the window, the girl repeated back our order (which was right) but it was as if she completely didn't comprehend any of it. She got my bf's sweet tea right, but initially gave us another small sweet tea and I guess a regular limeade drink? We told her that we received another sweet tea, instead of our blue raspberry slushee. She came back and gave us another drink, that wasn't even blue, and you guessed it...it wasn't even right. She also didn't even look at us or say anything; just closed the window and walked away. She obviously didn't even care - so there was no point in trying again.
*Mind you, I was going off of the menu I saw online.
I completely understand if that particular location didn't serve the new items there, but we weren't told otherwise.
We get back to our hotel and find random stuff in the chicken strip box. It looks as if they just threw in whatever they could reach and thought it was good enough.
I'd give this Sonic location a 0 if I could.