Jana was a super host, all went well. I would recommend her place without hesitation. The place is really an apartment, fully equipped, not just a room. There is a kitchen, with dishes, pots, everything.
Even through the apartment is not in the center of Prague, this was really no problem since the tram/bus stop is really only about a 2 minute walk. The tram goes directly to the center and the old city, no transfers needed. Again, a super accommodation!