I tested the touch and go when setting up my N7. It worked pretty well for setting up my Google account, transferring system settings, and installing apps. There are still very few apps that use the Google backup stuff though - unless the app explicitly stores its data with your Google account, it probably won't get restored.Anybody used the "Tap and Go" yet? interested in how much of the "settings and data" it will transfer from existing apps. I have touchdown, nova launcher that can export settings. But many others don't have that option. Also, what about the WIFI access points and passwords transfer, that has been hit/miss in the past. Shame I can't root my droid turbo and use titanium to restore all on 4.4.4. Till 5 is released for the droid turbo, turbo sits not activated waiting for 5. My old rooted Galaxy S3 working fine..
To be entirely honest, I think I prefer the standard account setup. The improved version gives you much more control over what actually gets restored than the tap and go thing does.
You may also want to check out Helium (https://play.google.com/store/apps/details?id=com.koushikdutta.backup) for a non-root backup solution. I let Google reinstall all my apps, and then restored their data with Helium. Worked quite nicely.
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