"I've been using Google services on my iPhone since it became available and have had frustrations several times over the last 5-years. Also, been syncing calendars and contacts since Palm OS in the mid-90s and so quite familiar with the joys and frustrations. When EAS was removed for new phones/accounts, I decided to go ahead and give CalDAV and CardDAV a try since I work on two Mac computers, an iPad, and an iPhone with 5-10 calendars and two contact sources (work and home) and I'm primarily in the Google landscape for mail/contacts/calendar. I think that the contacts and the mail syncs pretty flawlessly and I don't find myself troubled by any of it's actions. However, I do flip between the Google app and the Mail app on my iPhone throughout the day. As you've pointed out, the calendar has some nuances that can lead to frustration. For the most part it works as long as I keep certain things in mind. Also, rather than using Fetch automatically I have it set to Manual so the sync..." - Kenley Neufeld