As a guitar teacher and someone who makes their own online guitar lessons, I see many advantages in subscribing to these platforms. However theres a few things to consider before jumping in, such as your skill level, styles, genres, price point and of course the teachers themselves. I have purchased all of these these online programs and have analysed them from a teacher and a learner perspective.
With over 30 years teaching experience (My BIO) I think I have seen it all when it comes to learning materials and what works and doesn’t work for beginners, intermediate and advanced players.