The place is really comfortable, everything loooked just as photos or even better, it is very clean and organized, we had an amazing time in London and an amazing rest at the airbnb.
I would recomend you consider this place as one of your options, we enjoyed breakfast at a bakery no more than a block away. King's Cross is at a 15 minute walk down the road and there is also bus stops if you don't feel like walking.
checking in and out is really easy and we had great communication along the way.