I've got a new-ish mindee - he's been with me about three months - and he's a pet, really sweet and good natured (15mo).
This has to be because his mum and dad are just absolutely lovely.
They are totally accomodating about day changes, gave me a birthday present (I wasn't hinting, it's just that I had the day off and mentioned it was because my DH was taking me for a birthday treat), always ask after my (grown-up) daughter because they know that she's doing her teacher training....
What a lovely family! It makes all the difference when you feel valued and appreciated by your mindees parents.