1. I was the only one who stayed in the rental property, and I am generally happy with my short-term living experience at the property.
2. I have never had a chance to meet with Amy in person (the supposed owner on the said AirBnB ads), and it was Fred who facilitated my check-in on the first day, and he seems to be a nice gentleman. By the way, Fred introduced himself as Amy's husband, and I was able to get all my questions answered by Fred in a timely manner (an example is provided below).
3. Don't lose the key (room card), as there is a slightly higher than average financial penalty (about three times more expensive than the cost to replace the room card at a typical locksmith place). This being said, I am grateful for Fred's quick response (in approximately 15 minutes) when I informed Fred by a social media platform that I could not enter the room due to a missing room card (it was my responsibility). Otherwise, I might have to wonder around on the street for an hour or even longer. Also, I understand the financial penalty for a lost room card, as Amy and Fred would have to spend time to get the room card replaced (and this task could be a hassle). If I were the landlord, I would not like the tenant(s) to frequently lose the key.
4. Safety and Convenience (to city bus stops, a nearby subway station, name-brand restaurants and bakeries, to the famous National Taiwan University campus) would definitely be two notably pluses. However, as there are numerous eateries (street vendors) around the building, the cooking oil fume and mixed food smell on the street level could be a concern to those who have a sensitive nose. This being said, an encouraging news is that the room is located on the 8th floor, so I could NOT smell the bad air even when I keep the window ajar on the sunny days. I should note that one may turn on the air conditioner all the time, but I would turn off the air conditioner in the morning (to get some fresh air) and I would also turn off the air conditioner when I am away (just be a reasonable global citizen and not to waste the electricity).
5. Finally, I would like to add that I found only one dead cockroach near the elevator, but I never found any cockroach in the room during my entire stay. Given that there are numerous eateries on the street level and that the time of my visit was in a hot summer, finding no cockroaches in the room is unusual (and would be the reason that I would recommend the place to other travelers).
I just shared my candid observation here , and I urge future travelers to help Fred keep his place clean for many future travelers to come.