Karel's place is absolutely fantastic. I stayed there for three and a half months while studying abroad in Prague and could not have been happier. Karel and Simon (who manages the place) were always quick to respond to anything I needed. The apartment is in a fantastic location; it is about a five minute walk to Wenceslas Square (which has lots of shops and restaurants and a metro stop), a fifteen minute walk to Old Town Square, a ten minute walk to the river, and a six minute walk to a bunch of grocery stores. The apartment is quiet, clean, comfortable and very well stocked with bedding, towels, dishes, laundry detergent, etc. The bathroom and kitchen have been recently renovated and are very nice. And on top of all of that, the balcony and the view are spectacular. I really could not recommend this place more.