I will preface my review by saying that our experience won't be indicative of what future guests will have. Unfortunately for our group, an electrical problem developed on our 2nd night that left us without heat, power, or hot water during most of our week stay. The cause of the problem turned out to be very difficult to find but was finally isolated with our help by the 7th night. It can now be corrected for future guests. There were also plumbing issues in the first floor bath. When these issues were brought to Marina's attention, she immediately responded and mobilized repair services the same day. There is not much more one can ask of an Airbnb host. And the difficult electrical problem was certainly not her fault. Marina was also very gracious in reaching an agreeable accommodation for the problems we experienced.
Positives
Fantastic location in Marylebone near subway and train station
Two pubs on the same street
Apartment was clean and has a modern kitchen well appointed with dishware and utensils
Easy access with key in lockbox
Washing machine in kitchen
Things to Consider Before Booking
Access to the apartment from the street is up two full flights of a spiral staircase. Be aware of that if taking large or heavy luggage.
The en-suite bedroom is on a separate floor up another flight of tight spiral stairs. This makes it difficult to share with guests staying on the main floor.
The upstairs bath is a jet tub that is quite deep and challenging to step into. There is no shower curtain so water on the floor after a shower is a problem.
No clothes dryer
No TV
In summary, once the plumbing and electrical problems are corrected, Marina's flat will be a super option in London for larger groups like ours, if navigating the stairs is not a concern. Given Marina's responsiveness and graciousness in trying to resolve the unfortunate problems we had, I would not hesitate to book with her. She represents a standard that all Airbnb hosts should strive to meet.