Presciently, I migrated a lot of my stuff to Google services this morning to give them a try. This makes me sad because I really like what Apple was, but I'm not sure if I like what's it's becoming.
In the last year, I've had reminders uncheck themselves automatically (still not fixed), contacts fail to sync (genius fixed by an hour-long process), and iMessages say they've sent but then an hour later say they didn't send (ironically, the message actually did send some of the time). Photos sometimes show up instantly in other places, sometimes it takes hours, sometimes it just doesn't sync. Frankly, I have very little confidence that any sort of syncing will work at a given time, and there's no obvious way to fix problems (reset button, resync button, etc).
In the last year, I've had reminders uncheck themselves automatically (still not fixed), contacts fail to sync (genius fixed by an hour-long process), and iMessages say they've sent but then an hour later say they didn't send (ironically, the message actually did send some of the time). Photos sometimes show up instantly in other places, sometimes it takes hours, sometimes it just doesn't sync. Frankly, I have very little confidence that any sort of syncing will work at a given time, and there's no obvious way to fix problems (reset button, resync button, etc).