Around an 8 minute walk to Mongkok station, Vivian's place is quite central to literally everything that's not on HK island and even then, it's easy to get to HK island (~30 mins to Victoria Peak). I found the place incredibly clean and comfortable for 1 person (would not recommend 2) and Vivian was a friendly host. You rarely see such a big bathroom in a HK apartment so that was a very pleasant surprise. There was some renovation going on upstairs while I was staying but other than that, relatively quiet. Nothing else to say other than I would stay here again. The area around the bnb is quite old and initially looked kinda shady but as long as you're safe about things you should be fine even as a solo female traveller.