I'm kinda biased cause I work here but I've never heard anything but great comments on the site here.
Best advice is try joing up for a coupla months and see how you like it.
There's probably enough lessons on the site to learn a new one every day for the next 5 years....with new video lessons being added every day.
Compare only $7.95 per month to what you'd get for 5 times that much from a teacer who'd only give lesson sa coupla times a week.