I didn't see Costa, but Rose and her handsome son were very nice people. this is the first time I go abroad, and when I arrived the Geneva airport I gave them a call and then it's very nice that her son (sorry I don't remember his name) picked me up！ Rose is a very kind mother, she told me many thing about the bus, store and so on. so it is very pleased living here. on the other hand, the location is very good, very near to the airport. but honestly, the wood room I lived is not very warm, and the price may be not among the cheap ones.