Some projects, firms, locations appeal mostly. In USA and UK, they say people like first or second location they used to live.
Some projects are with some kind odd charisma and composition .
Some projects have great people combination. You would love to stay.
Some projects make you feel right at home.
Always teams can/must be build with lot of patience and planning.
A bad element in project will mess up the whole system.
Hope you had favorite team/locations/ firm?