Stayed at Josef’s for 3 nights/4 days and thoroughly enjoyed it! Everything was as described, check in was easy, the location is so central and perfect for anyone who is going to Prague and wants to stay close to the main sites.
Be aware that the road has a few clubs on/around it and can get a little noisy during the night on weekends. If you want a very quiet getaway, don’t come on the weekend. Also, the blinds on the windows don’t block out the light at night so bring a sleep mask if you can only sleep in the dark!
Also the apartment was essentially the same as the one in the photos, aside from decor (i.e. carpet, art) but is very neutral and minimalistic - beautiful!!