This whole apartment offer has been a disappointment and I don't advise you to book this one. Never got in touch with Jakub (maybe this person doesn't exist) - instead it's a company called Prague Days that didn't respect my booking. After calling me the day of my arrival to tell me I can't access the flat because of some ongoing police investigation, they offered me a not so transparent offer per mail without any guarantee about the existence of this flat. I wasn't ready to take the risk and Airbnb advised me to simply cancel because the host could furnish further guarantee on the second flat the company offered. I would be very careful with this company or this flat offer if I were you.