We lived in CT for 7+ years and we would take the 91 to 9 path usually on holiday weekends, when we knew that the Mass Pike and 495 would crawl. One word of advice....there is pretty much nothing on Rte 9 between Keene and Concord and it can be a looonnnggg 40-50 miles if you get stuck behind Clem and his truck full of hay, so make your pee stop before you get on 9!