Update All Of Your Social Networking Accounts At Once

If you use multiple social networking sites and typically post the same stuff on each, a service you should check out is Ping.fm. Basically you make a post from any of Ping.fm’s supported methods (desktop app, text, etc.) and then your content is sent to each of your configured social network pages.
Ping.fm supports almost every social networking site out there, so no matter where your account is you are covered. I do not use any of these sites, but if I had multiple accounts I could see this as being useful in different scenarios.
Does anyone use Ping.fm or a service similar to it? If so, how do you like it?