I will sum this trip up in one word: Ugh! I paddled this river based on the review in the AMC Guide Quiet Water, NH. Instead of some idyllic river with trees draping over the river, I found an uninteresting river with trees that would have to stretch five times over to create a draping affect, except in one short section. The noise from route 108 never leaves for a moment and the river is too boring to make you forget the noise. Save this river for when you're completely desperate and have no where else to do.
The campgrounds are all 'family campgrounds' which means boom boxes, no privacy and lots of noise. The usual hotels.
Outside of Exeter, there is a small park called Gillman Park. That's the put in. This is a go one way and come back.