Either way, don't expect a flood. This service is a lot better at getting those repeat visits. One click, and your site and icon get pasted automatically onto the visitor's Start Menu, desktop, or both. You can bet you can get more action from these visual reminders than the trickle from Favorites folder limbo. You won't be forcing anything on them.
Implementation is dirt simple.
Test it free for 30 days and see if it works for you, if you'd like. I've got a 40Gig hard drive, with about a quarter of it used. But we make do. It is free. Well, let's quit making do.