The user interface improvements in SharePoint 2010 as a whole are truly amazing. Microsoft has brought this already impressive product leaps and bounds in terms of accessibility, standards, and usability

What makes SharePoint Designer different from virtually all other web design tools is that it is fully aware of SharePoint and its functionality – such as lists, libraries, and master pages – as well. In addition, SharePoint Designer gives you easy access to many powerful SharePoint features, such as the ability to integrate with external data sources Data View/Form Web Parts, that are not readily available in any other way.