I am using the latest build R3663_a6e18bc8 on Windows 10 and really like the new Filter behaviour.
Just need to let you know that the Browse behaviour does not quite match the Filter behaviour:
Selecting multiple Browse options such as star ratings then un-selecting them one at a time works fine until you un-select the last one. This should then show all images in the catalog but instead shows the images that were selected for the last selected item.