I have been a member of a credit union since my first savings account. Now that I am married we have 2 accounts at two different credit unions. I have kept my original account and deal with another local Credit Union for our primary “banking”.
In all the years I have been a member I have always appreciated the benefits of “banking” at a credit union. Here is a great article that compares the two. http://lifehacker.com/5055408/why-choose-a-credit-union-over-a-bank