While in Lake Havasu, we stayed at the Havasu Falls RV Resort. The only falls I can find are the water feature at the entrance.
Interior roads are paved, sites are concrete and fairly level. Utilities are mid-site. Power was clean, water pressure was good. Despite the close proximity of a wi-fi repeater, we could not get it to load anything. Verizon 4G was good. There are picnic tables. No data on laundry and restrooms.
There is a club house with a pool and activities for the winter visitors who have extended stays.
Their county health department has mandated the use of sewer hose supports to "improve the flow." They actually come out and inspect. Clearly they don't have enough to do.
It's not a bad park. Although right off of AZ95 it wasn't noisy. I thought it was a little pricey, but hey, it's Lake Havasu! They have the bridge.