Freetown State Forest is awesome. I really need to explore more of it. I go regularly, but I keep going back to the same two general areas- the area around the main parking lot and the area around the Ledge (old rock quarry). Those sites are both quite good for snake hunting, although not as good as the various sites I've found around Taunton. I've never seen, heard, smelled, tasted, or felt anything weird there, but I only rarely get those feelings that others eagerly attribute to outside, paranormal sources.
It's fun if you enjoy the woods or observing animals in their element or even being outdoors on a beautiful day. If you don't, there probably isn't really anything out there for you. My only regret is that everybody in Bristol County knows where it is and I can't go there without running into 4 or 5 groups of other people and tons of discarded bottles, wrappers, etc.