The service was pretty excellent and the guy was super friendly and welcoming. We had two different bingsu and they were both equally delicious. The store is small but cozy and definitely a go to. A fun fact it that momo is the name of their dog and that's where they got the name, making it an even more enjoyable visit. (Dog wasn't there but pictures of it were!)
Update: we passed by again later and momo was right outside the store!!!
Highly recommended and the man even noticed us noticing momo and smiled at us :)