Sorry you beat me to it. I was just going to post that I reversed everything back and re did it and it appears to be working.
Whilst it needs 'prettying' there is a drop down menu available http://giftoly.co.uk/store/category/...bath-and-body/
I see that the filter is looking for any brand within the entire store, could it be adjusted to just show the brands within the current category / sub-category location ?
Also with the right design knowledge could this be changed to a list with tick boxes allowing multi boxes to be chosen and also preferably placed within a widget area on the side or does it have to be placed within the datafeedr store area?
Can this also be done for merchants and price range ?
Really think a lot of users will love this functionality as it's enabling 'live' filters which is great !