SQL Server 2008 FILESTREAM Feature with VLDB

Question

I have a bunch of xml files that is about 700 GB in size. I'm going to load the data within those files into a SQL Server 2008 database table(tabular data). In addition to the fields that will hold the data in a tabular format, the table will contain a field of SQL Server XML type that holds the xml data as a whole. I want to use the FILESTREAM feature of SQL Server 2008 instead of loading the whole xml into the field. I want to know the benefits the performance of the queries that will be made on such a very large-table will gain and the pros and cons of this feature.

Thank you in advance.