Pluses: Location was great for mass transit (4 close Tube stations), buses everywhere or a quick walk to all Southbank attractions, restaurants and grocery. Fabulous, friendly, and helpful host. Very cute and stylish apartment with lift and all amenities.
Cons: Not the most comfortable couch bed, early morning airplane noise if have open window (bring earbuds), slight work around for host's work day bathroom needs.
Overall, a worthy experience!