I am not familiar with this antenna, or the antenna company, so I read the promotional material, the reviews and the manual for the antenna. After that, I pretty much agree with "prcguy". The good reviews (5 by 5) on eham are not out of line with that type of antenna. The basic setup shows the 13 and 25 foot elements deployed along with the ground wire. Without anything in the "matchbox" those lengths are ok for the bands above 40 meters, but useless for 40 and 80 meters. To make it useful for 40 and 80 meters, a impedance transformer is necessary. The impedance transformer also helps to smooth out the impedance excursions on the higher frequency bands.
Will the antenna work? Sure. But so will a home made Random Wire End-Fed with a impedance transformer. And for a lot less money.
I have a 92 foot End -Fed that uses a 9:1 homebrew Balun at the feed point. It tunes all bands (160 through 10 meters) with a SWR less than 1.5:1, with a tuner, but is a little iffy on 30 meters. Overall it works very well.
For some magic numbers on random wire antennas try the following:
With a 9:1 balun and 53 feet of wire you should be able to tune 160 through 10 Meters with a SWR of 2.2:1 or less. See the link below.
http://www.balundesigns.com/content/Wire%20Lengths%20for%204%20and%209-1%20ununs.pdf
A good ground wire is needed.
Of course, that's just my opinion from the available literature.
Martin - K7MEM