This room is part of a large apartment where all the rooms are rented out to AirBnB guests. The apartment is very well-equipped (hair dryers, coffee & tea, flawless WiFi and even a washing machine) and has a perfectly central location, so it's great for a hassle-free city trip.
We didn't get to meet Alex, but his friend David, who checked us in, is very friendly and can give you lots of tips to explore Prague. He allowed us to leave our luggage in the apartment for a few hours after check-out, which was great. We had to book this room as an emergency option over NYE after our original host cancelled last-minute, so the rate we payed was a bit steep, but for the usual (very budget-friendly) rate I would not hesitate recommend this room.