So for a Mac user, getting this phone wouldn't be a disappointment compared to buying an iPhone?
Nice to hear that file transfers work without problems -this can be done with a USB cable? But how about syncing the calendar and address/phonebook with "iCal" and "Address book" on a Mac (without using the cloud)? Third party software is OK if it can't be done out of the box.
I was on iPhone for 5 years and I'm still a MacBook Pro user.
The phone itself isn't a disappointment, in fact after this update, I'd say the cost/value ratio compared to an iPhone 6 Plus is just 3-4 times better in favour of the G3, no doubt there.
File transfers with a USB are super easy.
However, if you're talking about ease of syncing to iTunes, especially photos and music, then the iPhone wins. Backing up too, Apple wins hands down.
The Address Book, personally I just synced everything from Apple over to Google Contacts and it works fine, the Calendar was easy to sync too.
Basically you will have a couple of weeks of fiddling around and getting used to things, that will happen regardless. It's a big change. But I just got a bit bored of iOS and frustrated at the escalating prices.