So I spent last weekend in Northern Michigan for the first time in a few years. I expected it to be a pothole dodging adventure. But it wasn't! With the exception of a few main through roads in the traverse city area, for the most part the roads were very good. Especially the twisty fun ones along lake michigan. I guess chalk it up to less traffic and less heavy trucks (despite worse winters).
I highly recommend M-22 (and 109) between say Luddington and the tip of the Leelanau peninsula. M-119 north of Harbor springs into cross village is great too. Just watch out for deer and wild turkeys.
There is still hope!