I have a K2 14x25. I used it only a few time. I like you are a hobby nut. I like it for a hobbyist machine, but. I have found that it will not cut Alum. at any size or thickness. It is super for wood, MDF, plywood's and most plastics. You must supply your own spindle motor, a wood router body equipped with a variable speed option is perfect. Also you need to purchase a control software such as Mach 3. My opinion is that, this is not a heavy duty machine. By that I mean to say it is not sturdy enough in it axis travel to take the cutting pressures of metals. These are gantry type machines running on unsupported linear rods. There is too much flex in the gantry for heavy duty cutting pressures. I must add I like it very much for an entry level machine. It will do some nice things if you treat right. I hope this helps. These comments are only my opinions of course.