I've never tried the speed rack but I'll take most anything over a Magic Rack. The balls just slide off the plastic in the same place every time. I don't like watching players run out the same exact rack each and every game.
There used to be a member here who sold a template rack that was made with paper or something that had texture. Perhaps it was some sort of cellulose. Anyway, he sent me one to try and I really liked it. The texture makes the balls roll away not slide away, so it gives you similar patterns to an actual rack.
The one I have got damaged and faded too much so I cannot even read the brand now.