Me and my friend stayed together in room C at Jacky's place during an exchange semester at NTU. While it was one of the more pricier alternatives, we found that it was really worth it. The place is clean and feels homey (which might be because we're from Sweden and there was a lot of IKEA furniture). The size of the room was not optimal for two people, but we were able to make it work for four months. It really depends on what you need in terms of physical space.
The location was also really good and even though it is close to big streets it was surprisingly quiet, at least in the room we stayed at. We could hear the occasional sneeze from a neighbor and the rain could get pretty loud sometimes. Jacky's place is close to two MRT lines which was very convenient. There's tons of restaurants, cafés and shops nearby and the lovely Da'an park is just a 10 min walk from the apartment. If you're a student like us it takes about 15-20 minutes to walk to campus, and if you are lucky enough to grab a YouBike it will take you 5-10 minutes.
We would recommend this place to anyone who prioritizes comfort and convenience. Even though we didn't see Jacky that much, he was always quick to respond to messages and was very accommodating. All in all, we are very pleased with our stay!