If location in the West End is your most important feature for a London flat, I cannot imagine a better location. This is a three level flat with beds and baths on the second and third levels and living/kitchen area on the first level. This does mean quite a few stairs which was not a problem for our family; we found the separation of areas nice for our family of 5.
This flat is a 2-3 minute walk to 2 tube stations, great coffe is next door, many restaurants and shops within 2-3 minute walk. I would not hesitate to book again for our family. The local hosts went above and beyond during our stay and response was prompt.
Be aware that there is some street noise (not a problem with background noise apps running and not as much as some areas of Covent Garden/West End); the benefits of having location FAR outweighed this street noise.
Would highly recommed for families and also small groups.