Don't know when the minyanim happen,I went at end of august when they were there. We loved the equinox, it's an old place that is kept up nicely (but originally from 1700s), so it won't look modern, but really nice and relaxing. Beautiful grounds and huge reserve with all different kind of hikes 5 minutes away (we went with a 5 and 6 year old and had a beautiful easy level hike). The indoor pool is beautiful, there is a cool big firepit outside at night, here is tennis and other stuff (check website) and there is Bromley amusement park nearby, a basic place with an alpine slide and some fun water rides for family (was also filled with Jews when I was there). Also great shopping outlets nearby.