I have been eating at this outlet every time I visit Taipei.
The pizzas are really great and special.
The price has gone up over the years... It's now NT185 each (Aug 2015). The restaurant was fully packed when I was there because the roof-top was closed due to rain. I asked for take-away and there was NT10 off.
I am not sure about the prices in Taipei. But at NT185, it's great value! I won't be able to get such great pizzas at such prices in Singapore.
My favourites -- Fire dragon 噴火海龍 (be warned it's really spicy!), Basil-mushroom 羅勒鮑菇 (pesto like flavour)& Ginger Ultraman 薑絲超人 (lots of ginger and some salted egg -- Ultraman's nick name is "salted egg superman").
Apple Cinnamon 蘋果肉桂 & Rosemary potato 香草洋芋 are not bad too.
Cons: limited seating