It works wonder for those who are sincerely willing and able to get better and accepting of their own vulnerability. Most of us (I think) don't want to see him dead in a ditch and so we'd like to think this is really what he's going through. But, sadly, the statement they put out gives no sense of rock bottom and there is clearly a lot of skepticism here. I'd like to think he's really in rehab but....I can't be sure, and that's his fault, not mine.
30 days can be enough to detox but it wouldn't be enough to get on a new path unless Rob has a real breakthrough. I don't know about anyone else here but I'm not a shrink. That said, I think it's pretty clear he suffers from narcissism, mommy issues, daddy issues, pathological lying and who knows what else on top of the substance issues. He, very sincerely, needs ongoing therapy and, again, that's not going to have any meaning unless he is sincerely committed to it.
There is nothing we've seen in his personality that suggests he's capable of that kind of breakthrough but I'd like to think he's actually had it. This city will go on, and he will lose and I don't forgive or condone what he's done to this city. But simply as a human being, I have no desire to open my paper one day in the next few months and hear the he OD'd or jumped off a bridge or had a heart attack. So, in that context I wish I could believe he's really starting to get right. I'm hovering around 50/50 right now.