While in London we stayed at the Edward Lear Hotel. I would call it more of a Bed & Breakfast. It is at least 200 years old, if not more. (Edward Lear wrote silly limericks. He was an artist and traveler.)
We stayed on the 2nd floor, which really felt like the 4th floor after walking up 4 staircases. The home has a charming ambiance. There were cracks in the ceilings and walls. But it was so clean and the sheets were at least a 600 thread count:) We were lucky to have our own bathroom. Many of the tenants shared. There was no A/C, but at night we would open the window and get a fairly comfortable breeze.
Every morning we went to a Breakfast Room and were served an English Breakfast which consisted of eggs (poached, scrambled, boiled or fried), bacon (which was really ham), sausage, beans, toast, and a canned tomato. It was supplemented by cereals and juices. Some days we just ate cereal and toast as we weren't used to such a big breakfast. We sat at little tables with linen napkins. Our place mats were tiles with illustrated drawings and limericks by Mr. Lear. A waitress would take our order and then send it down below on a dumbwaiter (a tiny elevator for food) and the food would magically appear a few minutes later.
In the alley behind our place late at night we would watch waiters/waitresses hanging out smoking and laughing so we figured it was a restaurant or pub. Every night about 2:00 am we would hear a loud crash of broken glass as it was thrown into a dumpster. We figured it was liquor bottles. One day we walked around the block to check it out. It was a fancy 5-star style hotel with a doorman. So we figured that was the back kitchen door of the restaurant.
The great thing was we were only two short blocks away from Marble Arch and The Underground Tube Station. (More on that later.)
All in all we were treated very well and it felt like we were really in England. And if we were to return to London in the future we would probably stay there again.