I had almost the exact same experience. I originally used Ember 0.9.5 for an app and it worked very well. When I moved to 1.0.0-pre I felt that I had to completely relearn everything.
+1 on trying to track down errors. They never point to a line of user code! It's extremely frustrating when something breaks and you have no idea why.
+1 on trying to track down errors. They never point to a line of user code! It's extremely frustrating when something breaks and you have no idea why.