Faceted browsing in Libertyville

The Libertyville Library (my public library now) just switched catalogs. It's called Encore, and it appears to use faceted browsing. When you do a search, you can refine it by format, date, etc. and there is a tag cloud. I think you can also post reviews (although I'm not seeing that now). I'm enjoying the features - at least for public library types of searches, it works quite well!