I travelled with 5 of my friends to Prague during Easter holidays. Tereza was very friendly and easily accessible from the start and gave us the opportunity to stay in the "Sunny and spacious retro apartment" during our vacation since this apartment was taken (although our apartment wasn't even ready yet).
It was within walking distance from basically everywhere, the public transport worked like a charm as well. It was in the top floor and had an elevator which was a saviour after a day of walking around Prague.
Apartment had everything we could have hoped for and had a lovely feel to it. The beds were comfy, linens and towels fresh and soft. We don't have anything negative to say about our stay. Definitely would recommend whether you're travelling with family or friends, since the building and it's surroundings were quiet.