I’ve known of Twitter ever since its popularity started rising, however I’ve always felt reluctant using it. I didn’t see any point in posting short updates about everything I do, I didn’t feel the need for it. As such, I only got an account on Twitter about 2 years ago, and I’ve barely used it ever since.
Sure, it’s a great place to get updates on other topics, but I prefer feeds. Feedly.com is a great website to follow feeds, especially since RSS is no longer supported on Chrome.
However, I’ve found it to be especially great when you need to ask for short, quick advice, or to obtain specific updates, as you typically receive a reply in a very short time (much faster than e-mail!). From that point of view, it’s great!