I got a large, because I am silly, and brought half of it home that I couldn't finish (so maybe not so foolish), and it was tasty.
Bonus: I had a really good salty soda lemonade. It's a very hit-or-miss drink. The first time I had it, it was amazing. It made me say, "oh! This is what every lemon-lime soda in existence is trying to be!" I've never had it that good since (usually it's way too salty or sweet or both), but tonight's was getting close. It was a bit chunky/pulpy with lemon bits, but still quite good.