Ive got the cnc2 unit with 4 axis that I use on my Sieg X1 conversion. I converted it to all ballscrew but wish I had waited and could have bought the KX1 still it was a learning curve as they say but when you are new to the subject its all very daunting so much to learn and still to learn!
I must say that my biggest problem has been with room which is why I went with the X1 mill no room for any bigger!

Peter