5 /5 Laura Hoysradt-wheeler: Greylock Federal Credit Union has been a lifesaver for me. The family atmosphere is real. The banking is so much easier within open hours or closed, the auto teller is just like a real teller, you just have to get used to the buttons and options and your all set. I never regretted switching from the bank I used for most of my adult life. Greylock really is a friendly and helpful bank with sweet staff. Thumbs up 100% from me!