It just seems that bit more professional to me.
Progarm and definition updates are automatic, you don't need to go looking for them.
The system uses a number of 'shields' that you can configure on or off.
When you load new stuff on your PC Spysweeper asks if you want to include it in it's system.
Home page is protected against hijack in real time.
Picks up stuff on your PC like Geowhere which I was mucking around with.