Additive manufacturing pretty much always needs some sort of leveling phase to cope with z-axis irregularities. Without that you can't hold tolerance. Furthermore without support material you're limited in what you can build.

Looking at the pictures this seems like it makes metallic blobs approximating the shape. I suppose if you have a CNC to post-process it into something closer that may be fine. It'd be nicer to do the machining on the fly, but with the width of the material deposition it looks like it would drip down the sides if you did that.