Really well located place. I think it is excellent because you can walk to Old Street Station or Hoxton Station, and there is a bus stop nearby. Also, there is a minimarket just downstairs and a Tesco within walking distance.
Bella replies the messages immediately and is constantly checking whether things are ok.
I think the only downside is that since there are several rooms you may be lucky and end up with nice/clean or messy/rude flatmates.
If you need to work from home I would recommend room 2 or 3 as those have desk.