The rw15 and rw20 are pretty nice machine compaired to the older knee mills and partner series. If you give me your area I can send a users list of those machines. I am the service manager for Milltronics so I have see the improvment of the machines through the years. The rw12 is a machine with dove tail ways, so don't compare the rw15 or 20 with it. Take a look at the VM machines also if you are looking for higher speeds.
You can take my info any way you want, but I will always be honest.
now off for New years