Sure makes installing door hinges, handles, & locks a breeze. You will still need to own a chisel and know how to use it but this tool definitely speeds up the whole process and the results are excellent.The only downside to this particular tool is the router bits and how they are threaded on the ends. Assuming you wear your routing bits out, you better be able to source new bits or be a machinist so you can either cut threads on a standard shank or make an adapter to use a standard shank bit!I'd highly recommend this tool for anyone who installs their own doors!
CWJ 
