Some limitations of PPS according to Nishant. My biggest limitation with the product is it no longer includes Proclarity, and they’re still trying to catch up with the features of that tool.
Customers I worked with loved Proclarity and I found it easy to use and navigate, and features like custom sets, decomp trees and heat maps were very powerful. MS really needs a desktop tool for their BI stack, outside of Excel. Perhaps Project Crescent might deliver on that, within a Silverlight smart client.