I have been staying at Earls Court Studio 2 to 4 times a year in London for the past nearly 6 years now.
Earls Court is on the Picadilly Line ( Heathrow Airport is 30 to 45 mins away on a direct line.
Its less then a 1 minute walk from the tube station.
On Earls Court less then a block away there are pubs, chemist, Marks and Spencers Food Hall, Bakeries and much ore with ready made food that can be warmed up in the kitchen of the studio.
The window open for fresh air. The toilette and bathroom are clean
The kitchen has salt, pepper, stove top, microwave, kettle, cups, spoons.
The rooms are spacious compared to what you would normally get in Central London.
My favourite room is number 7. Where the door is outside, two sun roofs,that open and its private.
TV screen is large for nights you want to stay in and watch TV with a glass of wine.
The wifi is excellent. Iron and board are available.
Only things I would add: Dish towel to try, cloth to clean top, or paper towel.
Room number 7 needs an extra pillow, perhaps a few wine classes.
Dimir is very helpful, very accommodating .He does his best to get my favourite room when possible.
For me its like having your own little pied de terre ( your own flat ) in London.
I have stayed in room number 6 with two beds, another smaller room behind reception are in the back which is very quiet as well as a room on the upper floor with two beds and large window.