The location was great, literally outside of the Zhongxiao Dunhua MRT stop, with plenty of cafe/shopping/food options around. Tan tan and her team were very responsive and helpful on Line, and recommended a great breakfast cart only a couple blocks away. The room itself was nice and spacious as well, although the bathroom was a bit small and had an unused washing machine that took up half the shower stall (but it seemed like it was maybe just there temporarily). They even put in a separate sofa bed for us, and there was still a good amount of free space.
Overall I'd recommend the place to anyone else staying in Taipei.