Today texted several girls (some TOFTT, others well known) and finally opted for Barbie Cumming:
External Link/Members Only(4 positive reviews out of 4, one very recent). I usually prefer younger girls (I understand from previous reviews she is in her early '30), but let's try one different this time.
Answered quickly to my text. In a second one I ask whether in 15 mins everything is included, she confirmed promptly. Then, we agreed on an time (X:00), she gives me the postcode (close to Seven Sister and in front of a small park) and she asks me to contact her when I'm in the zone, I replied back ("OK, see you later").
I arrive at the postcode 5 mins before X:00 (the postcode is 5 mins walk from Tube station, luckily I took the correct exit), so I wait 2 mins before calling her. I call her, but she does not reply (I'm 3 minutes earlier, so OK). Outside it's raining. I send her a text 3 minutes later. After some minutes I call her back (20 sec), she does not reply. I send her a last text after 3/5 minutes. She does not reply, so I go away at X:15. (Note that it was raining, so it was not pleasant for me).
"Luckily" I had some plans B, so I managed to find another girl (this is another story, I'll post it tomorrow: positive / neutral), but I had to take the tube again etc etc, in another zone etc etc
Funnily enough, after 20 mins I received a text from her "Are you still there? Sorry, I didn't not hear you...". Yes, bitch.

I'll never ever contact her again, regardless of what other reviews say.