Naturally, I have some thoughts. Let’s get the negatives out of the way first.
The hardest thing to keep track of is probably the correct Pitcher’s Die to use. There’s the “handedness” factor and fatigue – it can be really confusing figuring out whether you’re supposed to use a d12 or a d8! Like me, many players will probably opt to drop the “handedness” factor altogether. Adding in the effects of player “traits” might get confusing, too. Fortunately, those don’t come into play that often.
Another thing that calls for adjustment is that all the plays to infielders are ground balls. No popups or lineouts. I may have missed something in the rules, but a player should naturally feel free to turn (for example) a 6-3 groundout into a popout to short if nothing else is affected by the play. Other tinkering should be possible to allow for players to play out of position – a shortstop at second, or a starting pitcher coming on in relief. That might already be in the rules (or in the expansions); I just didn’t read them closely enough.