I read about this place one time in Bob Wood's Big Ten Country. From the description of the place, I couldn't wait to try Krazy Jim's Blimpy Burger in Ann Arbor, MI (see map). We went up to Ann Arbor for the Iowa/Michigan game in 2004 with our friends, Scott and Marcia Schroeder, and Dave and Pat Heusmann. It was a MUST to go to Blimpy Burger and we weren't disappointed in the least.
Actually, the lady behind the counter doing the cooking was worth the price of admission. A little black lady with a fast mouth and a tart tongue, she cooked some great burgers. You actually had to order how many you wanted on one bun - they're pretty thin. I think I ordered four, which would have been a little bit more than a 1/2 pound burger. But then after that, you pick your condiments from fried onions, lettuce, tomato, egg, everything you can think of.
Don't take the burger off the tray, however. That little lady will literally jump over the counter and nail you up 'side the head!
Krazy Jim's Blimpie Burger was simply one of the best burgers I've ever had. Period.