Have several guitars and basses, and do all maintenance except soldering stuff myself. However, I never had a dedicated tool set for the most frequent tasks such as changing strings and setting up necks. This kit is absolutely brilliant in that it contains exactly what you need, and the plastic pouch holds everything together so that individual tools don’t get lost - which they somehow tend to do when you have separate tools laying around. The quality of the components seem to be of quite good quality - perhaps not absolute top shelf, but I definitely feel confident that this kit will do its job for me and my instruments for many many years to come. Simply brilliant and highly recommended!