He was ranked as the 6th best LH pitching prospect by MLB. on a scale of 20-80 (with 50 being average) ER's rating is an overall 55, so he's average+, a little shy of being above avg. the site gives a breakdown of all his pitches, and control, he was graded 55 across the board. And the Mets came calling for him, so that seems like a ringing endorsement, since their system is stocked with high ceiling pitching prospects.
I also like that he has a slightly above avg change up. I've mentioned ER a few times, because I felt like he was an under the radar guy who was developing through hard work, learning from his experiences, and no fanfare. <- that last one is a biggie, because we're all tired of hearing about the great pitching saviors, year in and year out, who ultimately fizzle and fade.
Eduardo Rodriguez, Orioles: The Venezuelan native took a step forward in 2013, reaching Double-A Bowie and ending the year as the starting pitcher in the Arizona Fall League Championship Game. He has grown into his big frame and now throws his fastball in the low-90s with good action. Rodriguez's changeup and slider give him two more quality pitches with which to attack hitters.