The location is good (all the places of interest are in the walking distance), but the neighbourhood is not nice (you have prostitutes walking down the street after dark).
The host is very friendly (met us at the airport, provided with yogurts and pastries for breakfast).
But there's a lot to improve at the apartment. Exhaust hood doesn't work, so you deal with odors when you cook. The living room should have more light. And the apartment in general should be cleaner (we even got a dusty bra under the bed).
I'm sure it all can be fixed quite easily.