I bought her latest CD when it first came out. I've listened to it seven or eight time since. I think it gets better with repeated listenings. I can see where it might get mixed reviews, it's very eclectic. For people looking for one type of music, they probably only get about 1/4 of a CD.
Saw a couple of things on CMT about her. One was the top 40 country female vocalists, she ranked number 37. I thought this was kinda low, but then again she is not a record company type of country artist. The other was a Crossroads show pairing her and Elvis Costello. I'm not a real big fan of CMT, but their Crossroads shows are generally pretty good, and this one was excellent. I think CMT rebroadcasts these shows periodically, so it will probably show up again. Well worth trying to catch.