We stayed in the room with the balcony. The balcony was amazing; a great place to have a coffee or beer and look over the neighborhood. Even though we shared a bathroom, the toilet was right next to our room and we found it was usually free. The place was very clean and the owners were super friendly and willing to accommodate all of our needs.
Location was pretty good. Many bus stops were very close (five minute walk). If you didn't want to deal with public transit, it was a twenty minute walk to the train station and about an hour walk to Tower Bridge and an hour walk to Big Ben and Westminster. Not that far for those of you that have been travelling a bunch and are used to walking.
Overall, very clean, very quiet, and a decent location.