Whenever someone posts about moving to NH, a percentage of dipshits who've never lived anywhere else crap all over Manchester and bitch about how expensive Portsmouth is - without your ever taking about your budget of where you're moving from. Manchester is a great little city - there is crime, but nothing compared to most cities and most of the city is very safe. If you are single and looking - Portsmouth and Dover are the best places to look as there are more young singles living there, and more of a night life
If you like the outdoors, skiing hiking hunting etc - check out Littleton - a hidden gem Imo. Concord is very central to everything and downtown is improving. Rental vacancies statewide are about 1%.