Actually the sales page is becoming more and more common. There are a lot of digital merchants using this kind of copy and style.
This is actually called a
"mini-site".
It's purely a sales page. It's designed to sell, to capture your attention. It'll use every sales technique in the book including testimonials, good looking boxes, throw in a few bonuses. A lot of the internet marketing guru's use them or promote their use.
They must work. They're becoming more and more popular.
There are a lot of good products sold this way (Many on ClickBank).
Also this is a ClickBank product. It comes with a
100% 90 Day Money Back Guarantee which is inforced by ClickBank... Just like PayPal.
So
I don't know how unique the product is. I've used Word Tracker
Affiliate Link ---->(
www.WordTracker.com)
for keyword research (Works Great!) and a few free tools like a combination of these two Overture tools:
But you do have nothing to lose...
Have Fun!