it makes the job 100% easier. the bad is that I'm the person that is working on the car. there is nothing bad about this tool. I took 1 whole day to bang out 1 side and then it took me 1 hour to finish installing the one that I had banged out and the other side which I haven't even began working on yet. the tool aligns itself properly, feeds the bushing back in evenly and is made of very good metal because it didn't even look like it hurt the threads.