Huge selection of flavors and decent icecream but service is ultra slow. The lineup is definitely a causation of the service speed, not just popularity. Also the "HK" waffle is NOT authentic and is not crisp and soft on the inside like it out to be, and turns out more dense and cakey as they don't really make it the proper way. (They pour way too much batter in, and tons drip out in excess. The proper way is to use less batter, swirl it around for a few seconds, and flip. Trust me... I've made hundreds of these...)
Overall a tiny bit overhyped but solid place to get some icecream. If you like the waffle, great, just know its not 'authentic' as advertised as an HK waffle. Its just a waffle with that shape.