Sounds like the Marlins got a nice haul this time.
They might have but it's so hard projecting baseball prospects.
I have the milb.tv package and usually go to a couple Lakewood games. I was impressed with Stewart, he throws on an odd angle so the low A hitters just couldn't touch him but we'll see as he moves up how he does against tougher hitters.
Sixto I got to think there's something wrong as he missed almost all of last year and there was talk at the time that the injury must have been worse then expected. That said to throw as hard as he does with impressive control is something. He could be really special or end up in the pen.
Alfaro was one of the main parts in the phils trade of Cole Hamels to Texas. He's got a cannon of an arm, good power bat but K's way too much and is a work in progress with his defense. That said he could still develop into a very solid catcher imo as the tools are there.