My office manager and I were planning a test run, but we have abandoned ideas of synchronizing three times a month. You just don't want to gamble on something like that, if it's not 100% reliable. It might work ten times in a row, and then go kerblooey. I don't want to take a chance on a corrupted database.
Right now, I see "synchronization" as something I might only use once in a great while, in a very specific situation. For example, if I became partners with a fellow AC user, and wanted to merge databases. Only a task of that proportion would be worth risking a corrupted database.
What I'm considering now is going very low-tech: just taking my tablet on my nursing home visits and house calls, jotting down notes into Word or Notepad with the handwriting recognition, and then copying and pasting into AC when I get back to the office.
