Service for one calendar is free. Most businesses find service for up to five calendars at $14.95 per month sufficient. The pricing matrix is here.
Take a look at the plugin on mikosm.com. The try-it-now tab gives you an end-to-end feel for the capability without having to load the plugin.
Please let me know if you would like to try out the plug-in files. Also, the Try-It-Now tab on the mikosm site will create a Google calendar in your account and then you can see the appointments from the widget appear in it.
Randy
