First, just to counter Fiddy's wrongness.. Alex has been playing in Rockford's top-6 for most of the season and has gotten consistent PP time. He was playing with Pirri on the top line before Pirri was recalled, and is currently playing with his brother Terry and Garrett Ross. The Hogs don't really have a top line with Pirri and Morin up, but the top-9 is:
Nordstrom - LeBlanc - Hayes
Ross - A.Broadhurst - T.Broadhurst
Winchester - Danault - McNeill
Brookbank - Froese - Shalunov
As for Alex, I saw a lot of him in London last year. He's a good passer, with above-average playmaking and vision and he has good offensive instincts. I'd say he's a touch above-average skater and he has a good (not great) shot. His weakness is just that - he's not very strong. His physical game (board battles, strength on the puck, etc) isn't great, but at the same time, I wouldn't say he's a perimeter player. He's not an in-your-face, non-stop motor kind of player. He relies on his positioning and awareness to disrupt plays defensively, and apply pressure on the defending team offensively.
And no, he's not that close to being NHL ready. I think he could have an NHL future as a top-6 skater, but he'll need at least a couple years in the AHL (including this one) before the Hawks can really see what they have in him.