The main benefits for content providers are threefold:
Popularity: Google Base is one of the most popular product search engine from Google.com company
Free content hosting: you cam place your products in Google Base for free
Distribution: Google Base enables content previously not found on the web to be more accessible and useful.
Ease in use with several click to get success!
Main features:
easy to use and configure
multilanguage support
multicurrency support
ability to set your location
ability to set payment types you accept