We LOVED our stay at Guillemette's! Her apartment is so sweet and cozy. It was definitely big enough for the two of us. The only downside was that it was on the 6th floor, but it made for an amazing view of the Paris rooftops! Guillemette was ready waiting for us with the key, even though we were a bit late because of a train delay. We didn't have any problems at all with finding it either - her directions were spot on. The apartment is also in a nice location - very close to the Sacre Coeur. However, the metro stop closest could feel a bit dodgy, but we always went in and out of it so fast that it didn't really matter. Would definitely recommend staying here!! And will come back next time I'm in Paris!