After the update, I'm getting a "Problem loading gadget" on 5 of all of my icons on the 7 screens -- 2 of them are original Widgets: Voice Mail and the HTC 5-button Power for Bluetooth, WiFi, etc. While I was on the phone with Support, I received a message that HTC Sense was not responding, had to Force Close. I was able to remove and re-add Voice Mail back to the Home screen. When I went to re-add the power widget, the phone seemed to be updating again, then I got a message saying it was complete. I was able to add the Power widget again.
No major issues, but not a smooth system update.