Location: Not exactly central, but literally only a 10 - 15 minute tube stop from everywhere you need to be in London.
Property: WOW! this place is super cool and nice. I've stayed at a lot of the park, grand, and higher-end waldorf brands and I have to admit. This location is really unique and chic. My wife and I spent so much time wandering and taking photos of the place.
Service: This is the most important party. The hotel goes way out of their way to help you with all of your needs. Everyday they sat with us to help us personally plan out our days. They sent us great cookies and snack and always anticipated our needs. Kudos to the team! because of their service, we recommended this place to three friends already. That's a great example of good service that brings more business in! I've only seen this kind of personal and welcoming service at a few other locations in Asia. The reason I bring this up, is sometimes with the fancy chic places you get a little bit of a distant feeling from the staff. Like when you go to those hip-trendy restaurant but the service is terrible. We'lll that's not the case here. You will be always greeted by name whenever you are near by most of the staff and they will often ask how to help make your trip even better!
Also - the croissants are great at 1901. Freshly baked and super yummy!