Not going to try a serious run until the beta expires - I've come across a couple of little graphical bugs already although nothing major. I do like what I see so far, there are some really nice new features. Like when you are on the tatics screen and you want to see your player's best position you can do it all from the same screen. I think it will be these time saving features that will make the biggest difference to me.
One point of interest, I've got a 5 star computer and with 70,000 players and a large database it runs at 2 stars. I wonder if there are further optimizations to come because that doesn't seem particularly efficient to me.
I'm trying Rangers for the first time!