Their place is a wonderful 5th floor walk up in an extremely central location on the Le Marais section on Paris. It's close to Murillo even lines and has tons of amenities (cafés, marchés, restaurants, bars, etc) right nearby.
If you have trouble with stairs, this is not the place for you. Also, pack light because getting big bags up the stairs is a chore. Otherwise, I actually enjoyed the stairs when I didn't have my luggage.
The place is a perfect size for one person, but it may be tight for two. Remember this is Europe and everything is smaller. The bathroom is a water closet and the shower could fit two snugly.
Daniel et Suraj are great hosts and leave yogurt, eggs, juice, beer, etc for their guests. They were available by WhatsApp to check in for the keys when I arrived and if you sleek French, they have lovely neighbors who invite you over for a drink!
I would highly recommend this place for singles or a couple and hope to stay there again when I next travel to France.
Bonus: Le Marais is a great LGBTQ section of Paris, sort of like the old Chelsea or the current Hellsea in NYC.