Lilly's place was better than expected and it ended up feeling more like a private home and less that a private room as it is completely separated from the rest of the house. I saw Lilly once at the check in and I had my own space, it was very private. It's location isn't amazing relative to London's landmarks but the complex it's located in is beautiful and it's decently close to the underground (Jubilee and Overground), there also is a bus station nearby. As for the room the bed was very clean and the mattress and sheets were comfortable, as for the bathroom I have to say it was excellent with a modern design and good quality shampoo and body-wash provided. The building is also heated all day long and there is plenty of hot water, although the water pressure was mediocre. Some things I greatly appreciated were the water boiler and the tea and coffee provided as well as the fridge located inside a small closet/storage room, a smart TV with a netflix subscription was also quite nice. Check in was easy and Lilly was very friendly and keen on giving us suggestions on how to navigate London easily as well where to eat around her place.
In conclusion it was above my expectations and completely private, I would thoroughly recommend it.