SQLite vs Core Data?

There's a quiet rumble flowing throughout the iOS developer community, and it seems be getting louder with each passing month (especially as we approach Apple's WWDC): iCloud's promise of seamless syncing through Core Data is buggy (at best).

It doesn't seem like Apple is intent on fixing these issues anytime soon (they recently expanded their iCloud team from 4 to a whopping 6 people), so let me ask you:

Would you use a SQLite service to synchronize data instead of Core Data? What would it take for you to switch?