The trails, the fields, and the lake are all beautiful. The park rangers were terrific. Noise levels were well managed after dark. We stayed right after some serious rains, and the roads were a bit bad, but not terrible. We had no problems navigating the roads to get to our site. We don't normally use the public restrooms, but they looked fairly clean. The sites are huge and fairly far apart. One negative is that the water hookups are VERY far from where you'll park. I had to use three hoses to reach the hookup. Cell service was quite good all over the park.
No dogs, no campfires after 11, no pool, no cable TV (5 over the air channels), no cell phone reception (Verizon), no internet at the sites, no trash pickup. Even the internet at the office is limited. I tried to explain to the owner why people couldn't connect, but he insisted that my three machines (one Windows, one Mac, and one Android) were all configured wrong, along with the other 5 people who couldn't connect. What do I know? I've only been doing systems and networking work for 30 years, and he runs a campground. (In any case, I can tell you how to bypass his bad configuration. Just hard code the addresses instead of using DHCP.) The ground was so soft that my leveling jacks sunk into the ground. Fortunately, the sites weren't seriously unlevel. Martha's Vineyard is a great place to visit and this is the only RV campground, so I may return. But this place was among the worst in terms of features.
The staff were nice. It had a very nice pool. The showers and toilets were very clean. We very much liked the nature trails. There is something they called mini-golf, it was a silly little thing just to say they have one. Similary, the dog run was just to say they have one. It is far from everything and no one uses it. They only pick up the garbage daily and it seems that animals frequently get into bags left outside. In general, it was quiet and comfortable and not terribly far from attractions (about 6 to 10 miles).
The individual site was level, but this campground is on the side of a hill, so going to and from the camp site is a vertical climb or drive. Our motorhome was able to handle the incline, but I suspect it will be difficult for some. There is no shuttle into town, but there is a taxi service for $10 each way. The taxi's will take dogs. You can also walk the 2.2 miles to the center of town. If they had a shuttle, I'd have given them a much higher rating. The sites are very heavily wooded. In fact there are paths through the woods between sites and to the buildings. They have an excellent pool and quite a few facilities for children. The entire facility is very large and many of the camp sites are remote -- that is far from other sites. We enjoyed the remoteness and isolation, but they were fairly empty so I don't know what it might look like if they were busier. The office/store staff was excellent and the store was above average, but pricy as is usual for a camp store.
We moved here from another Bar Harbor site because we wanted cable TV, and sewer which weren't available there. There were only a few waterfront sites, but we got one. It was clean, level and everyone was very friendly. The laundry was extremely clean but pricey at $2.50 per load and $2.00 per dryer load. The showers and toilets were also extremely clean. We didn't use the pool, but it looked nice.
The staff were very nice. We got a spot near the water where there is no Wi-Fi, no sewer hookup and no cell phone reception. They have a dog park, but it is very tiny (my guess is about 40 feet by 20 feet). Dogs aren't allowed in any of the buildings, including the office. You cannot actually access the water where we were. There were bushes and large rocks between the RVs and the water.
The campgrounds were very nice. The place is huge. It seems to be farther from the beach than we understood. The store is nice, but the hours aren't posted anywhere and when we asked we were told that the store hours are basically whenever someone wants to work in the store.
The owners really were excellent and caring. There are a lot of seasonal folks, but they are very friendly to visitors and with the frequent evening activities, you have plenty of opportunities to meet them.
The place really is immaculate. My only complaint was that the shuttle buses were terribly infrequent. The drivers said that most of their buses are broken, so only one or two are running. I would stay there again in a heartbeat.