I'm on AT&T, and my razr I runs beautifully! Battery is by far one of the outstanding features of the device, I can easily use it for two days straight. I would only get the phone though if you're willing to root. Stock is experience is great don't get me wrong, but the roms offered on this forum are just so much better. As for updates, I haven't bothered to check in months. I'm not expecting the phone to get upgraded any further than 4.1.2, so the only updates I check now are on development section of the forum. In my opinion the only things we would really miss out on are lock screen widgets and trim support, but besides that I haven't felt that the phone needs updating.
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