I'm a French and I discovered the country for the first time. Spending two months here (for professional purpose) was a good experience and you will be fine here. In fact, you will probably not meet Katerina who is not living in the house anymore but you will be hosted by her brother (Tomas) and his mother. Tomas speaks English and is therefore able to help you and answer your questions. Don't hesitate to ask him his phone number. His mother doesn't speak English but she speaks German. The father doesn't speak any foreign language. The family is kind so you will not have any problem if you respect the rules. The mother can do the laundry for you. The family has four cats and one dog. Most people in this country doesn't know English (because of the history and communism) so I advise you to have an electronic translator. Don't forget to activate the roaming in your phone if you can to get access to mobile networks. I let a paper with more information in the room for the next travelers. In Czech Republic, you must put 00 420 before the usual phone number when you call someone. I recommend this place. You will not be disappointed and be hosted by a kind family.