I stayed in this flat for a week and I can´t say anything bad about it.
The location was perfect between airport and city centre (about 20 minutes by transport to both places) and there are very good communications by bus, metro and tram.
The apartment was very clean and tidy, and I felt like at home too.
Also the owners were very nice and helpful, they helped me in everything I needed and were very approachable and friendly.
I would definetely recommend it to anyone visiting Prague.

Cheers