One casualty I noticed from the changes the other day--the ability to see the performance history with the same criteria that you had for a given standing order (the Urbi change). Now, the only performance information you get is Prosper's estimated overall return for the portfolio plan. If you want to see the exact number of lates/defaults/current loans that met the criteria, you have to manually enter the information into the performance page.
Incidentally, they've changed the performance page as well such that it defaults to "no criteria" again and there is a new way to specify which criteria to use. I haven't had time to play with it since they changed it but it is different now.