This is a very common question here with varying opinions. I tried NA beer for a while and found that i would actually drink it in some of the same ways I drank real beer ( drinking fast, hiding it from others, etc ) so I just decided against it. Some say it can lead to drinking the real stuff again, although that never happened for me.
The real crux of the issue is your motivation to drink it. Are you somehow hoping that others won't notice you are drinking NA so you fit in better? That's a bad idea of course.