They provide a lengthy list of webparts:
- Checked out documents
- My Favorites
- My Matters
- Matter Worklist
- My Worksite
- Search for documents
- Search for Workspaces
- Saved search
- Expose workspace folders
- User administration
- Independent folder (assemble a collection documents outside of Worksite - avoids refiling issues, cross library issues)
You can show single pane or double pane views.
The webparts are based on AJAX so it happens fast. (We have some hacks to publish Interwoven folders on our Sharepoint 2003. Ours run slower and are clunkier than these new webparts.)
Also they are going to allow the ability to attach a worksite document to a SharePoint list item. This functionality will be in the next version of the product coming out in 2008 Q1
These are a great set of tools with great flexibility.