happy camper here.

no OTA luck so tried NSU about twenty times with "connection failure" errors before giving up. later on, tried ota again and all went well.
Didn't bother with emmc flashing, just the plain upgrade. restored from backup, downloaded all my apps again and everything is working fine.

Overall, seems a bit more responsive.
Not sure if I'm loving the new virtual keyboard, but otherwise, I'm happy!