Here is a comparison of the two, on the SPY:
And here are the Expert Commentaries:
While the Pro version gives a great deal more information, the two strategies deliver the same results. Since the Expert is customized for the Price/Volume RSI Indicator, it displays Indicator information in the Commentary. In VSTpro, you would have to double-click the Indicator to see this.
An interesting feature of the new add-on is that the same Chart can do both Long and Short. In VSTpro, separate templates must be applied (although two Charts can share a combined Profit/Risk indicator).