Lana is absolutely lovely. She met me outside, and set me right at ease. She was happy to chat or to just let me chill as needed.
Her bed is comfy, flat is very warm, hot water bottle provided if you need it (I didn't), tea kettle with tea making stuff - and, glory of glory, there was a jar of chocolate covered digestive biscuits provided. The room also has a bulletin board with maps of London pinned up and helpful leaflets.
The room was clean and the bathroom immaculate -- a lot of work goes into that! -- towels and washcloths provided, and also a basket with extra shampoo for the traveller who has had the 'rare' experience of being separated from their luggage.
Seeing as how the last AirBnB I stayed at had a half roll of toilet tissue that ran out the next day...these small comforts cannot be exaggerated.
There aren't any cons but do be aware it is up a few flights of stairs in case you have heavy luggage you might need to plan for that, and that although smoking happens outside if you are hypoallergic it might be an issue. This is all I can think of to mention. The water is really nice and hot. There's a shortcut through to King's Cross that takes about 25 minutes to walk, but there are many buses too. Enjoy, if you can manage to find an evening on her calendar! Thanks, Lana!!