I have been to the Bow location 3x and never been messed around on communication or B&S'd, in fact my being late has been accommodated. The flat as I mentioned is actually very nice. Having said that the bookings are definitely not taken by these Polish WGs, and I doubt they know anything about it, I think they just turn up and work for the day. A maid/pimp is involved so there is always some potential for double booking etc by the maid and things going wrong.
I have been to the Ealing location a few times usually without trouble but once was left high and dry after making a special trip - no answer to my calls and texts.
Not been to the Shepherds Bush location and seems there may be bigger problems there with WGs not matching description and B&S.