I use it for my home shop. it replaces a 25 year old tool that finally broke. I own mostly vintage bikes with 8 speed so haven't used it for modern chains but I don't foresee any problems if I needed to. It is very comfortable to use and has great leverage to break stubborn chain links. I also like the replaceable pins which my old tool did not have. The sliding shelf takes a bit to get used to but works fine.