After reading several reviews online regarding headset press, I decided I wanted to try and save my money by doing the home mechanic approach with a rod, washers and nuts. The headset I was going to press in was a Chris King steelset, which probably is the toughest headset on the market. With the rod and washers, I was unable to get the headset to enter straight. It would missalign, and I would have to knock it out again with hard effort.I then decided to puchase this headset press, along with the Chris King headset press cups, and the whole process was a breeze. After doing it once, I learned that the headset will twist somewhat while pressing it in, so if you want to align the markings on it forward, you have to take this slight rotation into account when pressing in.I do not regret the purchase, since I also used it to press in a aluminum headset into a single speed I am building, and I will need it for a time trial bike I have waiting. I also found use for this press, pressing in a GXP adapter in my Hope bottom bracket.