I have only stayed in the tent sites here, the first time was over father's day weekend and it was the first campground that had an available site and showers. The second time was a few weeks later and I made a reservation to get one of the few tent sites with an electrical hook-up (and water too!).
Check-in is easy and prices are competitive with state campgrounds. I love that check-out isn't until 1:30 pm (check-in is 3:30 pm, but they don't seem to mind early check-ins) which is great since I hate to rush to get things packed up in the morning. I have seen some pretty long lines at check-in though so I recommend getting in before 2 pm or after 4 pm to avoid waiting.
This campground is right on Barview Jetty near Rockaway and Garibaldi. There is a large climbable dune just inside the park that is great for exploring and seems to be popular with kids. There are at least two access points to the jetty/beach area that are quick walks, but are also drive-able.
There are hundreds of sites, most seem to be camper/RV sites (even a few right by the jetty), but there are a lot of tent sites as well, for how large it is it is a fairly quiet campground and most sites have the standard amount of privacy.
Some of my favorite things:
If you like to fish, crab, or clam all three are available either at the campground or within 30 minutes.
Tidepools are about .5 mi away, close enough to walk.
They have wifi available, but I have yet to try it out.
I noticed a fish cleaning station near the entrance which is super handy for cleaning your fresh fish.
The employees seemed pleasant both times and were fairly quick to correct noise issues with other campers (after 10 pm), but otherwise let campers be.
There are a few cons, but they are minor:
Showers are available, there are three private unisex showers at each restroom complex, but they are pay-showers. The rates are reasonable starting at $0.50 for 4 minutes and each additional quarter adds 2 minutes, change machines are provided outside each restroom complex as well.
Firewood is for sale at check-in and at the mini-mart just outside the campground, but it is $6 per bundle so I recommend buying from one of the many roadside wood sellers (usually $5 per bundle).
They charge a pet fee per pet, per night, I think it is a few dollars, but I left my pets at home.