Went there for the second time yesterday and had a slightly better experience than the first.
The first time I went was when it just opened and they only took cash. My friends and I ordered a few things to try: two of their sundaes, the macaron, cream puff and the matcha soft serve on a cone. I am a huge fan of Matcha and the ice cream had a strong matcha taste which I really enjoyed. But the soft serve was so tiny for the price they charge. The sundaes had toppings on them that were way too sweet and it sort of overpowered the flavour of the ice cream. The macaron wasn't that great because it didn't have a strong matcha taste to it. Also, the line up was pretty long, had to wait over 20 minutes. But that was sort of expected since the place just opened.
Yesterday when I went for the second time, I only ordered the tsujiri soft serve on a cone. This time I realized the portion size of the ice cream got much bigger! (See photos below for reference) I was happy to see how much bigger it got but I was sort of annoyed that I was ripped off the first time I came here. My friend ordered the soft serve in a cup which was the same price as the cone but we realized that the portion size was slightly smaller. I also noticed that the ice cream melts so much faster than regular ice cream and it wasn't even hot outside. By the time I got my ice cream to walking about 20-30 steps away from the store, the ice cream was already dripping down my hands from the cone. I didn't notice this during my first visit but the portion size was so small that time that I probably finished it before it even had a chance to melt.
Overall I think the tsujiri soft serve on a cone is worth the price here but I'm not sure about the other stuff. If you get the sundaes, you're just paying extra for the toppings which aren't anything special. Even though this place is sort of pricey, I think I would still come back again because the matcha soft serve tastes a lot better than some of the other places I've tried.