I had one teensy-weensy little problem with Android's Tap & Go feature for new phone set up. Although the NFC portion works fine, it is also VERY IMPORANT to enable Bluetooth PRIOR to running the sync. The sync code will temporarily turn on the bluetooth but it won't actuall work. Just enable bluetooth on the OLD phone prior to trying the Tap and Go and then it truly will be Tap and Go.
I had no luck googling for this issue or solution so noting it here for others to find. The phrase, "Sorry, Something Went Wrong" will appear on your new phone shortly have making the sync chime.