I believe that we are on our 5th or 6th year of APR's. It took a few years to get going, but once it did, people started seeing and shooting nicer deer. I don't hunt much for the antlers, although I certainly get excited when I see a big one. I just like being able to take older deer. The past four deer that my brother and I have taken have all been bigger than anything that my dad or grandpa have ever shot, and they both have a wall full of antlers.
That being said, I can see both sides of the argument. When APR's were first implemented here, there were a lot of guys who were furious about it. Talk to these guys now and they are singing a completely different tune. There are still guys who shoot deer that aren't legal, but even those who did are starting to go away since they are seeing better deer.
I think what Michigan really needs to do if they want to build the herd back up is back off on the does. It seems like they can come up with a special firearm doe season for just about anything! Early season doe hunt. Late season doe hunt. Shoot them with your rifle during muzzleloader season, etc. etc. It's hard to build up a population when you are increasing the number of bucks and decreasing the number of does in such high numbers.
There was talk a few years back about having an age cutoff where APR's wouldn't apply, but I don't think that ever happened. They were also talking about eliminating them for the first two days of firearm deer season, but again I don't think that went anywhere. I know that they don't apply during the youth hunt, which is good since it lets younger hunters get that first deer under their belts.
I don't really have any real scientific knowledge to back up what I'm saying. Just the slightly biased opinion of a deer hunter. This is a great topic! Really enjoying reading everyone's thoughts.