The place is convenient as is next to Euston Station and 5 min walk to St Pancras Int. Victoria Station is right next to it. There are convenience stores and pharmacies near on all directions. Not to mention the 10+ bus stops/lines that will take you to your destination.
It has several bathrooms so it will be hard for you not to find one unoccupied. Kitchen is big enough to sit and have a nice conversation with the roomies.
Light sleepers be aware. Even though Kamilla makes it clear for guests not to make noise and respect others sleep, you still have some guests that will come late at night (I don't blame them for how late since they are tourists) but will disregard the rules and act as there is no one else in the building. Everything can be heard.
There is a bit of a lack in communication, even though Kamilla sends all the right info, I never got a message with regards on check-in early. My flight arrived at 7:30 AM and could have planned the day better until 3PM if I would gotten a response stating that Yes I can or No I cannot check in, Instead of having hope that whole day that I might be able to.
The messages when I confirmed the booking and the process in check-in is automatic. Only message I received was that the room was not ready at 3PM since previous guest was not out yet exactly when I was walking through the door at 3PM. If Kamilla at 11AM tells me that the room is not ready then I take my time visiting around the City.