The Rebecca Madsen character didn't work for me. She just wasn't a believable detective turned to Fringe Division, I mean Mysterious Inmate Disappearance Division.
I thought the writing was weak. A few cringe worthy moments for me. I though the plot set-up was rushed. I guess it's hard to win either way - rushed or too slow -- but whatever they did, it didn't work for me.
I thought the actions of the inmates were edgy and violent. That's not a bad thing at all, but I was expecting more para-normal suspense than raw shoot em up violence.
This series is set-up for a let down. Whatever the "entity" is at the root of the disappearance, anti-aging, control of the inmates will not have a satisfactory explanation at the end. This is a no win plot line.
I can see the intrigue in using the Alcatraz (almost wrote Azkaban) facility. The "story of the week" has at least 302 possibilities (based on the number of inmates). If they focus on one inmate a week for a 22 episode per year series, then we're talking almost 14 years worth of material here.
In the end, I think Alcatraz - being the detectives catch the inmate story of the week with a little serialized plot sprinkled in -- will struggle to make it to year two. We'll see.