You can't sit in their precious seats until you order and pay. Let's get that clear.
If you are a first timer like I am, and try to walk in, you'll get yelled at by the lady behind the counter. There's no clear instruction, just yelling. You know, cause if you want to spend your money here you need her to validate you first.
Once you DO get your order in, you'll realize that everything you ordered is subpar quality on top of waiting for 30 minutes. Did they have to wait for taro powder to be shipped there in order for them to make your drink? Who knows. No one knows. No one knows why this place is so slow and so horrible. But it seems to be moderately busy regardless. This place is not for me. But if people want to support horrible businesses and keep these kind of places alive, well then that's what this city will keep getting. Horrible businesses.