[asterisk-users] freecall.com - has anybody tried it?

[Joseph]

This page http://www.freecall.com/en/index.html  is advertising free
calls to:
Argentina, Australia, Austria, Belgium, Canada, Czech Republic, Denmark,
France, Germany, Hong Kong (+mobile), Hungary, Ireland, Italy,
Luxembourg, Malaysia, Monaco, Netherlands, New Zealand, Norway, Panama,
Poland, Portugal, Puerto Rico (+mobile), Russian Federation, Singapore,
Slovenia, South Korea, Spain, Sweden, Switzerland, Taiwan, United
Kingdom, United States (+mobile).

And this page explaining how to set it up with Asterisk:
http://www.geekzone.co.nz/tonyhughes/2114

I don't have any qualified Windows box to get an account and try it. 
Can anybody comment on setup and or call quality?

-- 
#Joseph