Definitely worth a visit, so far I tried the Macha Bingsoo, the Oreo Bomb Cake, Macha Roll Cake and the hot Macha Latte. They were all really good and not too sweet, except the oreo bomb, so if you like desserts but can't handle the sweetness this is definitely the place to go.
The inside is pretty small, so I would avoid large groups. It seats like 10 people at most inside, and had 3 tables outside with 6 chairs. But there's a take away option for everything.
It's owned by two people, a man and a woman. I don't know their relationship. But I've noticed it's usually the man who's behind the counter, he's quite friendly and easy to talk to.