Great place, and *super* close to public transport, really easy to get into town. Gurbir is really nice and helpful too!
There's only one desk/table in the flat so not brilliant if you need to get work down after hours, but a great spot if you're out and about and just need a bed.
Only thing to watch out for: While it's right near Kennington station, the Bank branch Northern lines won't be stopping there from May-Sep 2018 due to engineering works (the Charing Cross branch, which hits all the tourist spots, will still be running though)