You cannot beat anything that is free and Skype obviously know this, because they are offering free calls to the Click to Call feature and that is not to be ignored especially when searching for products and services.
These are the features available from the new version on Skype;
Numbers which are FREE to call are now highlighted in magenta, so it is even easier to spot them while browsing the web
Windows 8 compatibility
Various performance and stability improvements
It looks like this is service currently only available in the US.