Alvin is very responsive, he will reply to you in no time. The apartment is in a seven story building, which has one unit per floor. Alvin's is on the top floor. The subway is only a few minutes away on foot. The area has two places that captivated me: Shauncheng night market 雙城夜市，and Qing Guang market 晴光市場. These are places that the locals go, and I saw only a few tourists during my three day stay. If you are interested in exploring local culture and lifestyle, this is a good starting point.
As far as the apartment goes, it is extremely clean, well equipped. The only wish I want is to meet Alvin in person and have a little conversation.