Thank you to everyone who already recommended this place.
I just returned from a month long stay at Vancouver Studios in London. The location was great less then a 10 min walk to the Central and District line as well as the Circle line. Paddinton station was at 15 walk as well, The location allowed me to explore during the day and pop back in for dinner or a rest before I headed out to see a play in the evening.
I book the cozy single. It was very cozy but had everything I needed. My room did not have an oven like the larger rooms, but I was aware of this when I booked. I had a kettle, toaster, fridge and two burners with a frying pan and pots. It was all I needed. Supermarkets are near by. There is a back garden that was a great place to have a coffee, wine or eat my dinner some nights. I had a room on the main floor which was perect. Many of the other singles are on the upper floors so stairs may be a problem for some. They have different sized rooms and I saw many families travelling with different generations.
The staff was very helpful and friendly. They offered tips on resturants, plays and sites. I have been to London a number of times and they suggested places I was not familar with. It felt like a great home away from home. It did not have AC but did have a small fan and it worked fine for me. This was the first time I have based myself out of one place for a month during my travels and hope to be back soon.