We camped here twice within the last several weeks, once on the way up to Oregon and once on the way back down. Both times we had no issues with any park features or the staff. Both times we stayed against the back wall of the park underneath the trees to ensure we didn't get too much sun as most of the park is setup for full sun exposure. Keep in mind that IF you're in a tent that most nights you'll find lots of dew on your tent/fly when you get up in the morning -- likely due to the late night fog that is common in that area. Many tenting family's/groups seem to bring mini electric fridges and plug them in while they're out during the day to skip the need for coolers (assuming they chose a spot with power). We'll keep that in mind next time we come up. We will stay here again in the future!
We spend two nights at this campground. Overall the campground was very nice -- clean, quiet and lots of trees. We did not get a chance to use/visit the showers but the other restrooms were fine with flush toilets and running water. The park even has places to dump gray water after doing dishes outside most bathrooms for those tenting (trailers can use the regular dump stations provided). Unfortunately we found that IF we wanted to reserve a spot for the next visit, only some spots are reservable online -- the remaining spots are first-come first served. A minor inconvenience, but one we can live with. If visiting in the summer, please ensure you bring bug spray as the mosquitoes can be annoying -- we didn't have too many but there were some none the less. One other thing to remember, there are only TWO stores nearby to get any supplies (the closest store outside the immediate area is ~75-80 miles away) -- one is really small and the other is about the size of your average 7-11 market with some fishing/camping supplies thrown in. Please ensure you shop for food elsewhere before coming to Diamond Lake as the available food these stores have are the basic staples and not much beyond that.