Careful with rooms in Amsterdam, miljonairstyle b&b and Billie Holidaystraat 45

The owners of miljonairstyle b&b (on lomanstraat), when their room is not available, redirect to a room on Billie Holidaystraat 45 without any description (how many rooms, configuration...), no pictures... Only a price : 120€/night ! Be careful with this place, it was already noticed on TA that it is definitely not what you can expect from a B&B, and they go on with their business (https://www.tripadvisor.co.nz/ShowTopic-g188590-i60-k8559998-o10-Miljonairstyle_b_b_in_the_museum_district_on_lomanstraat-Amsterdam_North_Holland_Province.html)