From a Tenants perspective, Foxtons are very poor at communicating. I have been sitting in my living room sometimes with visits from the estate agents constantly, without any notice whatsoever. when you challenge them for turning up unannounced they just apologise and do not leave, but continue the viewing.
Also, be careful about when you agree to a viewing, because one viewing turns into five or six before you have time to to draw a breath.
dont give them your work number either, unless you want to be pestered constantly with phone calls about last minute viewings that they want to do that day. Finally, be careful if they request to take pictures of your apartment, because they will move your belongings around and then not return them to where they were.
What agent could do to change your mind?
Communicated and followed the terms of the rental agreement.