Eliška's flat is absolutely perfect. My girlfriend and I only spent two nights, but the next time we're in Prague, we will definitely try to stay here again. Beer in the fridge (Czech Pilsner of course,) toiletries in the bathroom, and plenty of kitchen instruments at your disposal. It's super close to the train station, and not a far walk from Old Town Square. You can always take a tram if you don't feel like walking. There are also plenty of pubs and potravinys right near the flat. It was a great stay.