The building, and specially the entrance, is awful. The flat is very old with old and cheap furnitures. The girl who welcomed me just gave me the keys and showed me the wifi password, without any other information. I never met the host and, although my messages, he didn’t provide things like soap, toilet paper and garbage bags. I also told him there was a little loss of water under the sink and he didn’t reply me.
I stayed for one month and towels and blankets have never been changed.
Of course, I didn’t expect a luxury flat. But, for the same money, you can have something better.
Anyway, wifi worked quite well. Also hot water and heating worked.
The apartment was quite clean (except the oven).
The flat is in a very nice area of Prague, very safe and full of bars, restaurants, pubs, etc., very close to the historical center of the city.