We never saw Lisa (she advised that would be the case early on) but she was always there by text and quickly responsive. Location within easy walking distance from St. Pancras train station and Kings Cross metro station.
Don't let the exterior typical row house/apartment look put you off. Interior is new, clean and modern. I would rebook when I have a group of four on holiday. Yes, we noticed the train, but I was never awakened by it. Four legitimate beds with fans in every bedroom and in the living room, too.