My newest obsession. The custard here is amazing. It's smooth and creamy and full of flavor. Despite the fact that you are eating custard, it doesn't taste of cream or is buttery like some other custards I've had. It tastes of the flavor that you're eating--whether it be chocolate, coffee, or peanut butter. Check out the flavor of the day, or grab a sundae or float. I've only had the root beer float with vanilla custard, but I've heard great things about the cherry float.
Another thing that I like about Michael's is that they have pints of some of their past flavors of the day in the store, unlike some other custard places. So if you couldn't make it to the restaurant when Red Raspberry was the flavor of the day, you could come back a few days later and pick up a pint. Very nice.
The reason for 4 stars rather than 5 are the non-custard items on the menu--the burgers and hot dogs. They aren't the best in quality. Yes, they're probably made from fresh ingredients, but it seemed like my mushroom swiss burger wasn't made on the spot--it was probably warmed up. Plus they're overpriced for what you get.
So I recommend that you grab something to eat at Crema Cafe or Monty's, both on Atwood/Monona, and then finish your meal with some sumpremo custard at Michael's.