We were really pleased with our stay at J&D's place. The location was absolutely fantastic. There were tons of coffee places and eateries within steps of the apartment. The MRT station was a short 3 blocks away and there were larger streets within a block that made catching a taxi very convenient. In addition, the Tonghua Night Market was very close and that also meant that there were really great eating options available for casual dining every night but it was not so big/close that you had crowds/noise right by the place. There were a few pedestrians around until fairly late in the evening so it felt very safe. There were also two Family Marts (like 7-11) and a 7-11 within 1-2 blocks so getting supplies was super easy.
The apartment was very nice and clean. It had everything we could need without being over crowded or too minimal. There was a washer and dryer available in the unit and plenty of the necessary appliances (full fridge, stove, hot water kettle, toaster oven, rice cooker, microwave, etc.), although we didn't really use most of them (it was way too easy to just grab something to eat nearby!).
I would definitely recommend this place and would stay here again, both for the quality of the rooms and for it's excellent location! Definitely a great place to stay if you are a foodie!
Taxi to/from TPE airport was about 1200 NT$ and very convenient. Make sure to copy/photo the address in Chinese just in case. I think there is another street with a similar sounding name if you are just saying it in English so just be sure you get that right. You can also mention it is near the Tonghua Night Market. I might just be my pronunciation but I almost got taken to the wrong place a couple of times but got it corrected when I showed the address.