The house is nice and clean. No problem with all the advertised things.
Beware: no hairdryer, nor A/C!! (not advertised anyway)
The hosts are two people: a woman and a man. One of them is always at home (for what I saw). But they don't make any noise. So it shouldn't make you uncomfortable.
Although I wouldn't advice this for couples and such.
I didn't need to use the TV or Audio system... so I can't say if you can really use it, since there was always another person using it.
The price is a bit high, since the apartment is located in the city centre.
I think if you have a car, then you should consider searching for something else, keeping an eye on the price.