 Absolutely nothing Perfect stay
 Excellent service they asked the reason for our trip to Londonwhen we checked in I mentioned we were celebrating my husbands birthday that night When we returned from dinner that night they had placed 2slices of chocolate cake along with strawberries passion fruit and some berries on a platter with a birthday card for my husband in our room What a thoughtful and unexpected touch Top marks to the Hilton for going the extra mile and making our weekend even more special 