The apartment was a real delight/surprise especially since the flat had no review! In summary, it was a really comfortable stay for 4 colleagues on a business trip. Top pluses: location, cleanliness, new refurbished flat, professonal host.
The apartment is newly refurbished, thus all furnitures, including the heating/AC/lighting systems are new. I've stayed in 3 different Airbnbs in London so far, and this flat was the cleanest, simply because of the remodelling.
Aside from the smallest room that only has a single bed without a window or AC, there are 3 other decent sized bedrooms each with a double bed, TV, and AC. The flat has 3 bathrooms with really hot water. It was a perfect arrangement for 4 people who need separate rooms.
The location is perfect. Only 1-2 minute walk from Marble Arch tube, thus basically on Oxford St. It's in a secured building with a guard on ground floor.
Lastly, the property is managed by a professional management, so the colleagues I was hooked up with was so helpful and always prompt with any assistance needed. Thanks Raya and I would stay here again if needed.