We visited a just opened Thai Rolled Ice Cream shop in Chinatown last Wednesday. I'm pretty sure it's across the street from the one you spotted. The one we went to was plenty busy and had nothing to complain about, but the one across the street, as you say, had a never ending line onto the street waiting to get in. Either they're turning out one hell of a good product, or else they're very slow at producing it.
Anyway, the place we tried served up a surprisingly good dish of ice cream. We went in primarily for the novelty and just to see what it was all about. I'd seen videos of the fascinating process, but wanted to check it out first hand. We ordered the Key Lime flavor. The finished product had solid flavor and wasn't cloyingly sweet. It was also much creamier than I expected, based on watching how the rolls are achieved.
Trying to scoop up bite sized nibbles with a plastic spoon proved futile. Once the ice cream is rolled up there's a toughness to it's physical nature. We solved the problem by simply picking up the rolls like little cigars and biting off as much as we wanted. It was a little bit messy, but that's what napkins are for. Once in your mouth, it takes on the expected rich textural qualities of a good ice cream.
A really fun experience that ends with a pretty good bowl of ice cream. I highly recommend checking them out at least once.
Buddy
The place with the long lines must have been:
Legend Tasty House
2242 S. Wentworth Ave.
Chicago, IL 60616
(312) 225-8869
The place we actually visited was across Wentworth and a few storefronts to the north, closer to Won Kow.