Stayed here 2 nights for summer fest, only 15min to downtown!! It's clean, safe (security guard patrolled all night), and best of all location is awesome!! Like other reviews yes it's just a glorified parking lot with water/sewer/50amp, but I wasn't going to hang out at the site. I will be back again!!
This is basically a parking lot on the Fair Grounds with full hook-ups. We stayed only one night and the main area was full so they put us in the overflow lot. It wasn't very level like the main RV area but was doable. This was during Summerfest so they had a shuttle to get you to Henry Maier Festival Park. It was clean and the bathrooms and showers were clean so for an over-nighter is was pretty darn good. I would return if we were going to another event in the Milwaukee area but not sure I'd stay but maybe a few nights if something didn't attract me to the area.
I don't know of many large cities that have a year-round campground. I'm glad Milwaukee does. This is not a rustic retreat but for a metropolitan campground, it is great. Well located on the north end of the city. RV only camping on asphalt lot. Full hookups available though we only used electric. Good wifi. Clean, well maintained bathroom and shower room (separate spaces). Onsite laundry available though we didn't use. Personnel on site 24/7.