Hi,
Welcome to the site. I've been a paying customer here for two years and a couple of months. I had a bit of knowledge but very little. Some music theory. I had been in Jr. high and high school band when I was in my teens. Plus I plunked around on a bass guitar for a couple years. Never took it serious, never got anywhere either. Sold it when I was in college because I needed the money.
Fast forward some 20+ years. All those years I really wanted to learn to play guitar but was always too intimidated to pick it up and try. Finally convinced myself that I had nothing to loose. Got a guitar, started searching around the internet for guitar stuff, ran across this website. Without a doubt, best internet surfing I'd ever done.
The instructors are professional, knowledgeable accessible via the forum, the video library is extensible and they have created paths for you too chose from to help guide you on your journey.
It's a funny thing (well, kinda sad really), but I will go a couple months at a time without watching a single lesson, but, I still won't cancel my subscription. That's how much I enjoy and learn from this site.
Good luck, make the most out of it. And remember, you get out what you put in!!!