 I had to change my reservation so I called the hotel but they said I had to call Booking So I called Booking and the staff was very helpful however they could only make changes if the hotel allowed and it was very hard to contact them it took more than a week to have an answer back from Hilton at least in the end the hotel authorized the change 
 Staff was very kind they helped us on everything we needed special thanks to Ariana and Rafael and everyone greets you in the hall Breakfast was great but always crowded Rooms are big and beds are very comfortable It is very close to Edgware station so you can take Bakerloo Circle and Hammersmith City and District lines and there are many restaurants and small markets nearby I definitely recommend 