Location, Location, Location
We were in overflow so there was no privacy, no shade, no hookups and no fire. We only stayed there out of necessity since we were attending a festival. The beach access was confusing. The spot we thought it was was just a hill was a nice view. It was good for the dogs to run around though. The other spot it might have been the beach is too squishy to enjoy, my leg getting sucked in mid-calf. The rest of the campground looked pretty standard. Bathrooms were nice and clean and it was quiet at night which is better than some neighboring campgrounds.
Garibaldi is a cute place to visit though. Also close to places like Tillamook where the creamery is which is a must see. There's also a festival called Garibaldi Days which is why we were there every year which you should totally check out if you're here late July.
If your only option is overflow I would try something else if possible. Otherwise it's fine for a home-base to explore but not great camping.