I stayed here for three nights while working at the Mount Washington Climb to the Clouds and had a great time.  It was unfortunate that my site was close to the main road, but that was my fault and it didn't really change how my weekend was.  They have remote sites for camping, see video.  

The owner was a lot of fun, and even though our interactions were brief, they were all positive.  

The facilities were clean, bathrooms provided in two locations, one with a dish pit for cleanup one with coin op showers, and the remote campsites have a port-a-pot.

There is a small market in the office for basic supplies, Ice and wood.

The property is gated and you are given an access card.

I would stay here again.