I see a lot of German references, I can't see if you are - but, having said that, Wilkommen! I am originally from Namibia (guys must Google if they don't know where), now in South Africa. Namibia used to be Suedwest Afrika - as in Deutsch Suedwest Afrika, so we all have a smattering of German.
All of no consequence - I hope you will enjoy the site. Oh yes - glad you have given it up, well done
They have been around longer than I have. I probably use one of their books from 1966-67. There is more than one approach to learning guitar. Hal Leonard has a good approach, but be aware there are others you can try if Hal lets you down.