HighQ Collaborate is well suited to situations where a law firm maintains numerous documents for a client and the client needs access to them on a regular basis.
For example, we may store the client's minute book (which is relatively common for a large corporate law firm to do), but the client may need access to documents in that minute book on a regular basis.
Likewise, we have an internal system at the firm for hosting digital versions of closing books, however, many clients would not have a similar system because they would only receive closing books irregularly. USBs get lost and the client might not want to put the closing book on the main server where anyone can access it. By putting the closing book on the extranet site, the individuals in the client's organization who should be able to access the closing book can do so.