Found this location after a bit of a drive, would suggest turning left on Kilcullen Castle Gate going North as you'll enter from the front of the store instead of behind in the alley way.
There are a few chairs for people to enjoy a drink and dessert but not more than space for 8 people. Most people just picked up their goodies and left.
I came specifically for the macarons after following all of Baker Siu's Instagram posts. Unfortunately by 12:30pm on a Sunday, only 1.5hrs after opening, the store only had 13 out of their total 18 flavours left. A little disappointed but I was happy that I didn't have to wait in line and still had even to choose 9 for my box ($30). A bit pricey compared to other dessert shops but if you check in on Yelp you can get 5% off!
I loved the info sheet they provided of my selections so I could remember what flavours each character was. The designs are on point and very detailed. Flavours were pretty rich even after a few days in the fridge, but some tasted almost the same and weren't distinguishable. The only sad part was the cookie part of my Keroppi macaron was extremely thin which resulted in the back side breaking into a bunch of pieces in the box. The Totoro-Vientamese coffee was one of the most memorable flavours. As well as, Mikey, which was passion fruit.
Looking forward to returning to try the other flavours I missed and their cakes and tarts.