Eaton has tremendous stuff. His biggest problem remains the big inning, something he has just not been able to avoid.
I did take a flier on Eaton in one of my leagues, based on the new 12 to 6 curve he's added to his arsenal. He now has two legit out pitches, and with his velocity he's got a chance to be outstanding. He's also got a chance to remain a huge enigma, which is what he's been basically his entire career.
I usually will gamble a late round pick on an Eaton type and see what he does for the first month. (Of course, I did not start him tonight at Coors, where I basically never start anyone.) If he puts it together, he's a monster steal. If not, you'll have done a little damage to your ERA, but nothing you can't make up, and you'll at least get a decent months worth of K's.