I decided to pop in early this week. I don't want to write a full review since I walked, but I can add some details in a mini-review here:
Comms: Sometimes I didn't get a response to texts, so calling was more effective in that regards. However, she had a heavy accent so understanding her directions was difficult. I got annoyed that I couldn't understand her and also got annoyed that she didn't just text the address. To her credit, she remained very friendly despite having to repeat the same things half a dozen times. Eventually I made her text me the directions, and after that it was easy to find.
Location: About 2.5 miles from either train station, so getting there is inconvenient, although possible via public transit. There is at least a bus stop in front of the Iceland Foods, which is walking distance to the flat. The flat location was unexpected and not so obvious, but the inside was modern and clean.
Looks: I would estimate that she was 38+ years old or in her early 40s. Her body was mostly covered in a heavy coat, with just a corset thing showing underneath. She didn't look terrible, but also didn't look as appealing as the late 20s early 30s girl I was hoping for. Her waist was a little thick, and breasts looked average. Her face would have been pretty 10 years ago and still looked ok, but was not young and had some sun spots from aging. I would put her on par with many of the massage parlour ladies. Based on her age and looks, I decided to walk.
Attitude: Again to her credit, she was very friendly even after I decided to walk. Based on that, and from my experience with oriental WGs at these weekly-rotating places, I would bet that her service would be very good. If you don't mind the age.
Notes: I am not certain if I spoke to the WG on the phone or her maid. I did hear two women during the phone call. The location seemed to have at least three rooms, but I didn't see anyone else around. And I asked if another girl was available but there was not. So there might be a mama-san around, or she might work remotely. The mama-san manager is the best bet for seeing who's working.
I might try again in a week or two in the hopes of finding someone younger.