It's not mentioned in the article, but this is the same tech as Premier (https://premier.mobileworks.com) under a different name. The easiest way to try it is to send a task to premier@mobileworks.com, or to use Nathan Kontny's excellent product, Draft (http://draftin.com)!
Premier is great if you need a virtual assistant that is "fire and forget" without having to quibble with the precise nature of the work nor managing your own hire.
I've also used MobileWorks ~5 times and they always impress.