We were happy with our stay in the flat in Holborn. The apartment is in a nice, quiet building. It is a number of stairs up as disclosed, but we left in the morning and returned in the evening so didn't have to take them too often. The flat is best for that sort of schedule. It might start to feel small for a 4-5 person group otherwise. The bathroom is quite small and I can't imagine cooking a big meal there, esp since the fridge is tiny. But the rooms and beds were very comfortable and we had everything we needed in a central location! Lots of buses stop right near by and that is how we got around!