The Wegstr CNC prototyping mill

How is it at making printed circuit boards? This is my first try, and it's not that bad. Here are some answers to the obvious questions:

* wegstr.com

* Yes, I know about Othermill/Bantam. I wanted to try this one. Also, apparently Bantam doesn't do multi-point levelling.

* If you chemically etch, you deal with nasty chemicals. And even if you're fine with that, you're prone to over-etch, and then you still have to drill. This can "etch", and drill, and cut slots and various board shapes.

* It seems like it can do 8 mil trace-and-space but I wouldn't go lower than a space of 10 mil.

* I have no idea how long the bits last.

* I was conservative because I didn't know if the bits would break.

* The whole process is highly error-prone.

* It could take a day to make one board, as opposed to about a week for five from China. You can do solder mask. This is for one-off prototypes and tests. For anything more, go to China.

* I haven't done a double-sided board with it. I'm not sure how to fixture it for alignment. One video from wegstr shows that they milled out a negative for the board in the XY table, pop it in, and engrave out the bottom side.