We stayed at Raisa's place for a few days and had a good time.
The bed was comfortable and the space was more than fine for two people. The fridge was great for breakfast in the morning (it is hidden inside the bed side cupboard, we couldn't find it at first) and it was helpful to have a kitchen. However there were no sponges or cloths provided to was up with which made me uncertain the dishes in the cupboard were clean as I found them hard to clean myself.
Great location to see much of Prague on foot and close enough to trams and underground stations!
One thing I would say is if you are a female solo traveller leaving or arriving while it's dark outside I would recommend staying somewhere else with tram or subway connections to avoid walking. I felt perfectly safe during the day however the apartment is next to a club, this meant I had to walk to the station (as there are no trams or underground to get there because it is only 18 mins walk) in the dark at 6am when drunk people littered the street outside the house. I wasn't travelling alone so it was not a big problem but I felt it was worth mentioning.
Overall I had a great stay at Raisa's and would recommend staying here!