Wu's apartment is the PERFECT location. It's 5 minutes walk from Taipei 101 MRT station. It is also a few mrt stops from Ximen, cityhall, Maokong and Xiang shan mountain. It's also near to train station if you are planning a trip to Jiufen and releasing lantern.
Along the apartment are restaurant, coffee place, convenience stall and supermarket. Basically you will be self sufficient.
You can take bus 1960 from airport and drop at Grand Hyatt hotel. Wu's apartment is 10mins walk away.
Wu's daddy is very friendly and helpful. He make my stay wonderful and I will definately stay with him again the next time I go Taipei.