Thank you very much for this plugin. I’m yet another who’s investigated many search plugins without finding one that filters results in the way I wanted – this one does!
I do have one minor quibble though – since it doesn’t filter by post date (are there plans to add this btw?) it’s convenient to have search results ordered by date. Usually this is the case but I’ve noticed that some searches (eg keyword and category) can give results that are not always in complete date order. It’s not my theme and it’s not other plugins – any ideas?