Good spot for city camping
This is a marina with RV parking in the city of Duluth. So don't expect pristine views and quiet natural settings. But for city camping, this worked out well. The sites are decent-size and mostly level. No privacy from neighbors and side-to-side could be tight quarters depending on the rig (and if it has slides) that is next to you. But for being within walking distance of a good restaurant and entertainment district, this is a quieter spot than being in the city proper.
The marina makes for some nice views over the Duluth port and the lift bridge, which offers some cool sites when it goes up and Great Lakes freighters come through. There is some routine marina and port noise, but we didn't find it troublesome. (Note that the lift bridge schedule could throw off arrival and departure since you need to travel over it to reach the marina.)
Cell service was great for Verizon and T-Mobile, plus the campground WiFi is good, too.
Having clean, modern bathrooms, showers, and laundry available in the adjacent hotel is a nice amenity.
It's city camping, but it's a good spot to hang out for a few days to enjoy Duluth.
Tip: If you don't need a sewer hookup, go for the higher numbered sites with electric and water only for better views.
Another tip: Check the maritime visitor's center near the lift bridge for arrival and departure schedule of Great Lakes freighters. It's impressive to see them go by!