Kevin Goldstein had an interesting writeup of Feliz in Baseball Prospectus.  He had a chance to watch Feliz pitch and came away very impressed.  His line was as follows:

5 IP, 6 H, 1 R, 0 ER, 1 BB, 8 K

According to Goldstein, the scout's radar gun that he was sitting next to had Feliz clocked between 90-96mph very consistently.  Feliz also threw a "nasty" changeup and a slider, including an 80mph slider for a strikeout on a 3-2 count after five straight fastballs between 93-95mph.  The scout's reaction was:

He was very impressive. The arm is electric, and he established his fastball early in the game. He certainly flashed some average breaking balls, and that changeup has a good chance to be plus. He should end up with average command and control, as he’s smooth and repeats his delivery very well. The things I really liked was how he could turn it up a notch when he needed it-–that’s what big leaguers do.

To summarize Goldstein said the following:

At the end of the 2006 season, I ranked Feliz as the No. 3 prospect in the Braves system, a decision that was met with mockery and derision by some. A year later, despite the fact that he pitched just 42 1/3 innings in 2007, he was suddenly in everybody’s Top 10 lists, and in a loaded Rangers system as well. I ranked him No. 1 this time, which was once again met with mockery and derision. After seeing him in person and getting thoughts from the scouts in attendance, I stand by the ranking.

I know this goes without saying...but we really need to resign Tex.