It can be used for any type of online property (websites, website prototypes, online adverts, search processes, etc).

It has a very attractive delivery speed and price point (24-48 hours from order, 299$ for a 5 person test).

The features are as follows:

Clients define a target url (their own or that of their competition or best practice)
Clients define a goal for the testers to perform (e.g.; “find product x and take it through the checkout process..”)
Clients define the demographics of the kind of testers they would like
Clients define survey questions

We take care of the rest

Within 24-48 hours clients receive a report that includes, for a minimum of 5 testers:

Web cam recordings of the testers conducting their assigned goal/task
A synchronized recording of the entire screen session during the test
ClickFlow Analysis
Contextual written “bubble” commentary on screenshots
Survey results
Other quantitative data

Best of all, any visitor to the site can request a free 1 tester sample test.