I'd definitely recommend this apartment for big groups traveling to Prague- it is in a great location, very spacious and comfortable. Amazing view from the balcony, too!
When we arrived Romana seemed in a rush, probably because she had to check in other people. However she did help us reserve a parking space before we arrived. The air conditioning was broken which we weren't notified of and also there weren't enough glasses for everyone in our group of 6. Aside from those small factors our stay was really great!