I bought this set for two reasons. (1) To update my tools by adding some modern versions of tools that I already own, and add new tools that I do not own. (2) Have a portable set for trips away from home. This set did help in both areas. But, only slightly. The quality of the tools are not up to the level of say, Park tools, but they will get the job done. As far as having what is needed to get most jobs done, I still had to go to my old tool set to replace a Raceface MTB crankset, and also changing a Sram XO1 eagle cassette. Due to the sprocket pliers not engaging well and a lack of leverage of the cassette retainer tool. My old Park tools worked much better to perform both operations. Plus this set does not have a ISIS BB tool for removing/installing Raceface front chainrings on their cranks. Other tools in the kit are nice, such as the large allen wrenches with handles, nice tire tools, spoke and valve wrenches, along with some other service tools that may be useful in future repairs. Overall, the kit is a good purchase if you do not own many specialized bicycle tools and need a good starter kit. But, expect to have to add to your collection if you venture beyond the most basic repairs. And finally, Make sure you own torque wrenches for any work on carbon fiber parts.