To me, voice acting can be a mixed bag. It can make a game much better, but can also make it much worse. The big issue is pacing and delivery - I can read the discussions about exactly how the victim fell down really quickly, but with VA that becomes a laborious affair.

It also isn’t great for writer adjustment. If a game has late changes to one piece of evidence presentation dialog, they may cancel it if it’s unfeasible to re-record the lines given by the VA.

The Great Ace Attorney Chronicles had VA for certain key scenes, and it worked out pretty well, but ultimately you should expect these games to be very text-based.