Hi I have used au pair world and gumtree for our au pairs. Had a mixed experience and learnt hard lessons along the way. I agree with other posters A) be clear about your role and what it is - I send a detailed schedule before they accept the role. B) try to understand what they are getting from it. If I can't see how it benefits them then I move onto a different candidate.
AP1 via ap world. Polish. V nice stayed 8 months. Came from v poor, rural family so needed alot of TLC to get used to London.
AP2 Czech. Via gumtree and interview. Über efficient but ate us out of house and home. It became a problem which I posted on. Stayed 5 months we are still in touch
AP3 Greek ap. fantastic, still in touch. Stayed 4 months Children loved her, I loved her, DH loved her but she had bad ashma and ended up in hospital and they advised her to move back to sunnier climates
AP4 Mexican via gumtree and interview. Older 27 rubbish English. Nice girl but taught us we prefer younger AP's ( under 25) and they must have good to intermediate English for the DC's to build up a relationship quickly.
AP5 south african via AP world. Horrific. stroppy, lazy, racist (she was not a white SA either!). We struggled for 4 months and then she started to try to flirt with DH and wear skimpy underwear in the house which was unfortunate as she was a rather larger lady. As am I but I would not dream of showing off my wobbly bits ! It came to a head when a neighbours husband who was friends with us asked if he could not come round until she was gone as she had tried to grab him in the loo and he was a bit scared:-) ahhhh. We sacked her and put her on a plane home at our expense. Lesson learnt only employ AP's from EU countries which are cheap to fly too
AP 6 English, AP 7 scottish , AP 8 Swedish all stayed 6 months as we now only write 6 month contracts and they must have near fluent English all great girls who we have stayed in contact with and restored my faith in AP's. AP 9 Italian stayed 9 months as it suited us both, kids loved her, she is coming back for a visit next weekend bit scatty, room was filthy when she left but we liked the Italian warmth .AP 10 Hungarian. Only been here 4 weeks. Seems lovely. Calmer than Italian and the kids seem better with that. Again recruited via AP world.
I don't do trial weekends, our life is too hectic to be disciplined enough to organise that. I do have a list of must haves and nice too haves. We have a 35 hour role most of which is Childcare, taking and collecting from school, so cleaning skills are irrelevant for us. Relating to children is our no 1 priority, we also avoid non eu and certain eu countries.
And yes I long for the day DC's are in senior school and we have no AP. I shall celebrate by walking around the house naked, give dh a nice cuddle in the sitting room without expecting someone to barge in and have a family argument at full screaming pitch rather than loud whispers!!!