My feelings are very mixed on this property. The location is absolutely fantastic, but the cottage/house is not. First, the positive - you might not be able to find many better locations. It's directly on the beach, looking over Lake Michigan and the Manitou Islands. The beach is similarly amazing, with a nice wood deck at the end of the wooden boardwalk. You can sit on the deck, while the kids play in the sand/water all day. If the weather is good, you're in luck.
Now, the not so good part - the cottage isn't great. It's listed as a 3-bedroom home, and (accurately) notes that the 3rd bedroom in downstairs (aka basement) with a separate, outdoor entrance. We thought that might be an ok spot for our 2 kids to sleep, until we saw the space. It's down a few dark steps and the door has a failing lockset (just like the doors in the main house). That's not the real problem. The problem is mold, a shocking amount of mold. When I pointed it out to the property manager, he thought it just had been "missed" by the cleaning crew, was caused by "humidity" and could just be "wiped" off the walls. I'll try to attach photos if allowed. It is not a suitable space for anyone to stay until remediated and the root caused repaired.
The main house/cottage is ok. The owner could make it so much better by spending just a few bucks (especially on failing lock sets - c'mon, spend $20 and get a working door handle/lock). It's also very cluttered with furniture, especially on what otherwise would be a very nice back sunroom (stuffed with garage sale recliners and a large 50's diner table). The bright spot is the kitchen, which is clean and functional. That said, the laundry is next to the kitchen, and there was a gas leak of some sort from the dryer (?). We asked the manager to handle it, but he didn't (he said that he tried but the repair person didn't show up). His communication wasn't prompt, which is bizarre for a problem like a possible gas leak.
Afterward, we again brought up our concerns with the manager, especially the mold (rendering 1 of 3 bedrooms unusable) and, after a few back/forth messages, he gave us a small refund. It was better than nothing, but not by much.
In short, if the weather is good, this place is great when you're outside. If the weather is bad, it could be rough. The cottage needs proper maintenance, repair and de-cluttering to make it fully habitable and worth the high price.