There is a problem which I wanted to make you aware. There is a problem with the Hint section of the Filter widget - when using the Filter widget the text is far to greyed out to see.
Filter Widget set-up - Filter Widget1.png
Filter Widget in action - Filter Widget2.png
Can hardly see the text. No big problem but it would be good if you can feed back to the developers who might be able to change the colour or make darker.