The best thing about Alex's place is location. You can go anywhere in Paris if you choose this place for your trip. Just by walking within 5 min you can have good effiel tower view and go to trocadero stn. You can buy some stuff at the supermarket, which is located 1st floor.
This place is not spacious but has enough facilities including micro wave, coffee machine and big bed. And wifi is great.
Besides things i said, Alex is a good host. Before going to Paris, he tried to keep contacting me and during stay he cares about me. His generous attitude is for me to make a decision to visit again Paris soon.