Been playing for two days and just keep running into too many bugs. Tried uninstalling any Arkham Origins data from my PS3 and reinstalling, but still hitting the same bugs. The worst bug is the screen just freezing - can still access the PS3 XMB but nothing in game is responsive. Such as shame as the game did look like it was going to be fun.
To make matters worse Warner have announced they are not working on any patches, instead focusing on DLC.