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This is a good video, especially for flattop acoustic guitars. There is a short section in the beginning for archtop guitars (my interest), pretty much the rest is for flattop acoustics. Most of this latter section is for Martin guitars, there is a short section for one Gibson flattop, and at the very end they touch on other models and brands. This is a bit unfortunate (unless you want to work on a Martin) as there appears to be a diversity of how necks are attached, so much of the techniques shown may not be applicable for the guitar you are considering working on. I think the video could have been much better organized in this respect, i.e. spend a few minutes on each way a neck can be attached (and the basics of how to remove it), then perhaps go into detail on a few examples. Bottom line, if you have a Martin, it will likely be very useful, otherwise you may not get what you need from the video (vis-a-vis safely removing the neck, which is the major hurdle). Once it is off, the techniques for resetting necks probably do not differ greatly, so that should be applicable across brands and styles. The explanations given are very clear and should be easy to follow, and there are only a few specialized tools that seem necessary.