I can attest to this. I have been just a campfire strummer for years now and I chose Guitartricks because of the access to instructors that have incredible credentials (e.g. Anders being a studio guitarist for Pink and Taylor Swift), just to name a few. Anyway, having access to instructors of this calibre makes this course incredibly good. In just two weeks, I am no longer just a campfire ADE, CDG, chord kind of guitarist. I am now playing melodies with chords and it sounds incredible. I started with Anders from the beginning in a methodical way and have played every single day (sometimes way too much because I could not put the guitar down). Anders teaches with acoustic mostly in the beginning and I enjoy learning that way so I can be that much better on electric. It's so important to learn root chord notes, melodies, scales, power chords, etc. and Anders course is incredible. Lisa is also great,and I plan to also start hers so I can get my money's worth.