I stayed for 3 nights at Janet's with my 2 teenagers and it has been very positive: the host bedroom is well isolated within the flat, it is clean, Janet and Gus are ready to go the extra mile when need be and to come with you to help finding your bearings around their street (tram stop, cheaper parkings, lending tram passes). The bedroom provides as well guides and maps which is a good idea. Localisation near the RAI (exhibition center) might look a long distance from downtown but it is 30 mn by tram and 20 mn by bicycle