I would not recommend hosting Alexandra to anyone in airbnb community. She is the typical guest who, not being particularly well travelled, complains for anything that falls short of hotel standard (without wanting to pay hotel price). She had some problems in my apartment and made some others up in order to get a very large refund, which I gave her (40%) but frankly regret. So be careful. Cheap traveller.
Alex and John we ideal guests, polite and interesting to chat with.