Personally, I don't like them too much because I keep rolling my ankles when using them on anything but perfectly dry courts. I do tape my bad ankle now, so it's not as much of a concern, but it still doesn't feel quite stable on wet hardcourts.
I've never had a problem with an Feather on a hardcourt. I only use them for competition though because otherwise I would go through a pair every two weeks. Not exactly the most durable shoe.