Lillian is an extremely enthusiastic and helpful host. Really no issues whatsoever, all well as expected.
Location is most convenient with interesting streets to explore nearby full of restaurants. Right next to MRT station so all of Taipei is easily accessible.
The place was great for my needs, out most of the time but comfortable to come back to to rest and sleep. Below ground no window access but machinery to keep air flowing and dehumidifier so it was fine.
For some people not used to living in Asia or claustrophobic, stepping into the place it might feel a lot smaller than you thought so be warned. The photos are an honest representation but being in the place and experiencing the surrounding is different.