Their marketing department gears their ads towards fps numbers. What they don't tell you is that those numbers are achieved using their own very light wieght and inaccurate ammo. You generally don't want your pellets going supersonic. This is what destroys the accuracy and makes too much noise.
I have a Beeman Crow Magnum (same thing as Theoben Eliminator) that will blow this thing out of the water. All of my PCP air rifles will as well, especailly if I used their PBA ammo.
If you want a good quality made rifle, I would take a look at the Benjamin/Crossman Discovery, Air Force Talon or Condor, or any Beeman import (Falcon, Wierauch etc.). Of course, the quality rifles cost more than the Gamos.
That said, this one does look interesting. I would like to see some shot strings where they used some quality pellets like Beeman Kodiaks, Crosman Premiers or JSB Exacts.
For a list of some quality air rifles, check out straightshooters.com or Pamona Airguns. For reviews and questions, check out this most knowledgable airgun forum:
http://www.network54.com/Forum/79537/