I had one and agree 100% with cayugad on the recoil part.

It's great for turkeys out to 40 yards or more, but it is equally deadly on the other end if you're sensitive to recoil. I'm not usually recoil sensitive, but the TK2000 had me flinching with just a few shots. Sold it to a friend who loves Knight rifles and he bought a new barrel & stock for his Remington 870 to hunt turkeys the next year.

BTW - I called Knight and asked the max load for T-7. They told me 120gr was safe, and I tried it - ONE TIME!!!!!!!!
Pattern wasn't too blown out, but my shoulder was!
100gr of T-7 works for a good pattern, but it still hurts.