Beautiful trail, well managed. Some trees are down currently (05/21/16) but nothing you can't easily pass. A couple muddy patches but surprisingly good condition. Be sure to have bug spray and plenty of water. The hike back up is a moderate incline so save your energy.
We hiked a lovely three mile loop on the Amity Pond Trail starting from Allen Hill Road. There is a kiosk there with a map, take a photo of the map before you go. It's 1.5 miles mostly down hill to Broad Brook Road, turn right on the road to the little village of East Barnard, then right at the church and right just past the first house back onto the trail for another .7 miles mostly uphill back to the beginning. It is well marked and easy to follow.