We often go to London for the Christmas holidays and wanted an apt that would be centrally located in the best of London's neighborhood. 9 Hertford Street, was highly recommended by "London Suites", the travel agency we used, read the reviews and booked it for one week, December 24-31. What I thought would be a a safe and great place for my wife and kids turned out to be any traveler's worst fears. My wife came to realize that the passports had been stolen along with its content of cash. After an endless search effort and dealing with a manager who kept trying to insist otherwise, as well as trying to go through her personal belongings, she contacted the police. Miraculously the passports reappeared the following morning. Of course, void of its cash, absolutely EMPTY. It was clear that my family had been victimized while staying here, and someone had access to the apartment. FYI, don't trust the inside locks to provide much security, as the door can still be opened from the outside with keys. These things do happen, and its scary. Though, what made this situation even worst was how the management handled it. They have tried to trivialize it to my wife simply having misplaced her wallet, her memory, her being confused. Their actions were only about covering themselves at all cost. To date they have not taken any responsibility, not even some type of compensation. In fact, they sent an email demanding additional money. Do yourself a favor and find another place. This highly rated luxury place isn't worth your safety and security, it will cost you dearly. I'm convinced its happened to others before but no one has taken the time to write about it. I'll Be happy to share the police report and emails, if you want more details.

Had a fantastic stay, great location for all the shops in central london and the apartment was really massive. Only downside was that the person next door played their music really loud all the time and there was a bit of traffic noise - so just ask for an apartment to the back of the building and not on the second floor where that noisy person is apparently living.

These well priced, spacious, quiet and very comfortable apartments located in exclusive Mayfair are simply wonderful. My daughter and I stayed a week in a Deluxe apartment in November also taking advantage of the pick up service from the airport with their driver Tony who was a godsend after the flight from Sydney. We were able to check in to our apartment immediately upon arrival without incurring an extra cost. The manager Aude and her team were extremely pleasant and discreet. The property is located a short walk from Green Park underground and Buckingham Palace and the restaurants and eateries of Shepards Market are around the corner. The only inconvenience is that a couple of the cafes closeby don't take credit cards, so make sure you carry enough cash if having a morning coffee or picking up a very good quality takeaway meal to have in the apartment. We are already planning a return to London and wouldn't consider staying anywhere else.

We often stay in London but always choose the hotel option but really wanted to get away from the impersonal feel of one so chose 9 Hertford Street after some friends recommended it. 9HS is fully serviced apartments within a stones throw of Hyde Park in the heart of Mayfair. We had the prestige apartment with the balcony and the rooms were clean, well appointed, comfortable and wonderfully luxurious. We arrived very early at about 8am and were made to feel extremely welcome from the onset. We were shown to our apartment - beautifully appointed, large dining room as you walk in; living room with large TV and satellite channels - traditionally furnished room.

Kitchen well appointed with everything you'd expect - although we ate out all weekend so didn't make as much use - although for long term stay you needn't go out if you didn't want to.

Lovely bright bathroom; large double bedroom with lots, lots of storage space and balcony which extends from the living room. Bed fabulously comfortable with feather down duvet and pillows.

The location of course is the star of the show and its so great to just wonder around Mayfair - a leisurely walk around Hyde or Green Park round the corner; cocktail hour at Galvins Windows on the 28th Floor at Hilton Park Lane, supper at The Dorchester; a tipple at LouLous; clubbing in Berkley Square club and then home within five minutes walk - how could you fault it?

The staff are very helpful and accommodating and cannot do enough for you. Understated but attentive - 9HS was such an inspired choice and definitely epitomises the London scene at a such a wonderfully decent price. Highly recommended. ZNJ