1) If the phone is completely stock out of the box and never been rooted or had any of the bloatware frozen or uninstalled and never had any recovery flashed or anything like that. If it's in a decent service area, or connected to a strong wifi and If it manages to download the software OTA without any corruption (uncommon event) then there is no reason it should fail. VZW/Moto could make you go to their website to download the updates and make you install them that way, but obviously they are confident in the over the air update method.
2) The Razr HD and HD Maxx can be restored back to ICS from JB using either Matts utility, or the FXZ files via RSD lite. You will be unrooted (if you were), but you will be back on ICS.
tried to send you a PM but i don't have enough posts...sorry about the going back and forth yesterday...i may not have many posts but i am not a noob i lurk a lot. i just always want to make sure that i am 100% sure when messing with my phone,,,,
now a question, now that i sideloaded the updates and am back on JB, are we still on any OTA path in the future ??