You're right Cavey if you place your shots correctly I found it flows really well. There will be scoring shots everywhere. When you see it in person the slippers may grow on you. IMO they fit in perfectly with the game theme and aesthetics.
One of the things I forgot about when playing the prototype at first was all the flippers. Mainly the one that sits in the common 3rd flipper location if that makes sense. But after a couple of games I really got into it. It was set on a 2 ball game with the outlane posts being very open which meant at times the games were pretty short.
I wouldn't say the game's slow, but the footage doesn't really do it justice. What I'm really waiting to see is the different modes and how much the LCD interacts with the game with complete code. There wasn't too much movement happening on the screen other than for the locked ball and the witch on the broomstick (for game over). Although video footage was fairly limited at the time, I really liked the animation and sound quality was great.