I've visited individual sections but never a long, continuous stretch. I'd liken parts of if to the final section of the
(from Jay Cooke State Park to Duluth) in terms of elevation and twistiness. Sounds right up your alley!
I personally love the Iron Range, in part for the scenery, but also the history and people. An educational/historically focused bike trip is one of my favorite activities, and this area has a lot to offer. I could spend weeks riding around and visiting museums and historical sites! I have to shout out the
Forest History Center in Grand Rapids and
Minnesota Discovery Center in Chisholm as top notch.
There are plenty of hotels/motels in the bigger towns, but it may be worth confirming in advance if you're looking to stay in the smaller ones. I typically stay in established campgrounds, and sites can be hard to come by some summer weekends, so there too checking ahead would be advised. Some are nicer than others, or may be more geared towards RVers, but you'll most likely find a spot with a little planning. If you're into stealth camping there are plenty of wooded areas and lonely backroads.
I wouldn't say this part of the state is exactly famous for its cuisine, but you certainly won't go hungry or have trouble finding food. Similar to the Upper Peninsula there will be some pasties and the like. Plenty of bar food and pizza. I usually try to eat some fish (walleye, lake trout, whitefish, etc.) and wild rice while I'm there.