Spry and DW CS3

Anyone used it yet? Yesterday I skinned an accordion widget and used it on some FAQ pages. It turned a boring, content heavy, page into something a little more bearable. The pages turned out really nice, and only took a few minutes of skinning. I’m just wondering if there are any bad points to using Spry. Adobe says they are accessible and will work when css files aren’t loaded. The accordion widgets are editable through Contribute, which is the CMS I’m going to be implementing. Will they perform well in heavy traffic websites? If anyone knows something I don’t please post it here. So far I have only seen good things and am really impressed:P