1) Only Save the Part You Want! Not like any browser saving what you don't want (like advertisement banner, etc) too.
2) Support more document formats: MS Word Doc/RTF, HTML, Plain Text.
3) Save mass pages with pre-defined folder, filename and format.
4) Delete script from web page if you only want to save static information.
5) Save additional userful information, include Title, URL, Date, Time.
6) Integration with your browser seamless.
7) Allow you to keep track all you have saved with File Name, Date, Title, URL.
8) And more +