We went here the first weekend in Sept. Hubby and I and my 7 year old twin boys.
What we liked: employees were happy and courteous, there is alot to do for kids, they have a nice arcade and the games are reasonably priced- mostly 50 cents, some of the activities are really cool and great for families- we got to tie dye nice KOA souvenir shirts for 50 cents, the pool is also larger than most and has lots of comfortable seating around it, their pool is open later than most- until the end of September, my boys also enjoyed the jumping pillow (no charge), the campground was quiet at night- we had no problem sleeping
What we didn't care for (but could live with)- The counter at the store is also where you check in and the line could get pretty long, many of the trailer sites are right on top of one another and even the pull thru's could be hard to navigate because the roads are so close together, the pancake breakfast was nice to have but the pancakes really weren't worth the wait in line, you get a few small, mediocre pancakes (wait til after 930 to get them- the line will disappear)
Overall though we had a great stay and the campground is laid out nicely. Would definitely recommend!

We just stayed Thursaday-Monday at Kabin 4. We were suppose to be in a deluxe cabin with 2 bedrooms. This was not it. When we went to the office to go over the reservation we were told that it was booked before we made our reservation that there must be a misunderstanding . We didn't plan on 6 people /2 pets with one bedroom.So my husband said we would have to make lemonade out of lemons. Our cabin had a broken front storm door no screen, broken porch light , dirty futon and only surface clean. The pots/pans were disgusting. Glad we brought our own.Pool has black mold on edges and bottom is bubbled up. Game room had pizza box and soda bottles there for 2 days before we cleaned it for them.Spilled popcorn the entire stay right in front of change machine. Dog park was great! Putt putt golf needs many repairs to the greens. More than 50% of washer/dryers out of service at laundrymat. Pancake breakfast great. Staff friendly. Prompt with trash pickup.Great location. Needs someone with attention to details in charge.

I must admit I read the reviews and thought I would be in for a wild weekend. This was our first time camping in a travel trailer ever(34 feet). We arrived around 5pm and were met by nothing but friendly, smiling people. We were even offered an escort to our spot since we have never been there before. We stayed at site 54 with the cement patio, fire ring and picnic table. The sites are close but we had wonderful neighbors who were so helpful in helping us set up. We had plenty of room for our trailer and to park our truck in front of it. There really is enough to keep you busy in activities but we did venture out for the town sights. If you forget something the store will most likely carry it and the prices are reasonable. The free pancake breakfast was great. At night there were a few rowdy people but nothing to complain about. We will be returning soon. I highly recommend going to the National Park which is to the right of the road you turned on to get into KOA. You pay $10 to park but that includes the bus ride into downtown Harper's Ferry. Since you have to pay $10 to park downtown anyway and gamble with ever finding a spot it is so worth it. $10 covers all who fit in your one vehicle. KOA was packed when we got there but it did not stop us from having a wonderful time in and outside of the campground.

We stayed mid week, in a tent, so it was quiet. It would be miserable if it was full. The sites are right on top of each other. It was $46 for one night. They charged me extra for an additional child, even though I was only one adult. The shower was hot, and there are lots of activities for the kids, so they had fun. The sites are super small and lots of small micro litter around. No grass only rocks, so bring a tarp to lay under your tent, and a table cloth for the overused picnic table. The pancake breakfast is only pancakes. If you want coffee, water, or juice you pay extra (a lot extra). Staff is unfriendly. I bought firewood from a local resident that lives just outside the entrance. He was super nice and the firewood was dry and cheaper than the KOA.

If you go mid week, its probably ok. Also if you just want somewhere easy, and you don't plan to stay long, its convenient. Avoid on busy weekend, and if you want privacy and a "true" camping experience, or have a larger tent, find somewhere else