Ribbon Chart Y Axis
The Ribbon Chart is interesting although I find it really odd that it lacks a Y Axis. Please add a Y Axis with the usual functionality.
Persistent filters off by default
The persistent filters feature causes a lot of confusion, and it is only useful in some scenarios, after careful explanation/training. The default option for this (and any new feature) should be that it is turned off, not turned on by default.
Persistent filters should be cleared after each report publish
Persistent filters has an unfortunate effect when the report definition is changed and published - the saved filters can override changes made by the report author. This can cause a lot of confusion. When the report definition is changed/published, the persisted filters should be automatically...