I did not met Greg but i saw that he is very friendly and helpful, always ready to help us on any question. He gave us total freedom on checkin and very flexible on checkout if we needed. The house have everything that is needed for the stay, is not needed to bring anything for sleeping, cooking or for bathroom.. Is not very big but enough for 4 people. The location is good, 5min from metro and 10min from bus. Just 30/40min from the eiffel tower. The is a supermarket in front of house and lot restaurants and stores arround. very safe at any time of the day or night. I fully recommend Greg's house.