I own a Career 707 II which is my most powerful, and amazingly accurate PCP. I have heard that the newer CareerIII models are not up to the same quality as the older II models, but the II's quality is excellent...so even if the III isn't quite as good, it may still be great. I know at one time MAc1 was doing a "prep" on the older Career guns to make sure they were ready to go right out of the box, not sure if he does that for the newer models. Mine shoots Crosman Heavies well past the sound barrier, or way down to maybe 200fps, it's as accurate as anything else I have ever shot, and once I got the pellet stop adjusted correctly it cycles pellets really smooth and really fast. Only real drawback for this gun is that you have to adjust the pellet stop for each type of pellet you shoot, but once you find out what it likes to eat, there's really no reason to adjust it ever again. I've got the hard to find .177 CareerII, but this gun would be a real powerhouse with larger heavier pellets in .22, like Kodiaks or Eui Gin's.
Hth!