Physically settled doesn't bother me at all... I never hold to delivery anyways. You're still going to have to roll forward in the cash settled futures, if your intent is to hold the position into the new month.
The big discontinuity is a huge issue, a factor I detest with a passion. All of these products are affected by outside markets to at least *some* degree, and the fact you can't trade when there are big macro events going on is horrible. And the USDA report... you know, it's *optional* if you want to participate and compete in speed-reading of the report with the robot. If you don't want to compete, you can just wait for the market to settle down (probably takes 15-30 minutes) before you place your trades. You aren't any worse off than you would've been before the new change was implemented.
That said, I don't really see a reason to move over to the ICE contracts now that CME has been forced to expand their trading hours.
The only thing that worries me is, how I'm going to deal with the first few weeks of transition. I'm tempted to lighten up substantially, until I get a better feel for how the product trades in the new time zones.