I've had my Thiel 158 for a number of years now, and am very pleased with it. I was lucky to get a torpedo vertical head for it, the only downside to which was that it has a MT5 socketr, whereas the horizontal spindle has a Thiel taper. I made up a number of MT5 blanks which have been converted into toolholding as required.
There's a bit of backlash in the X axis, but the DRO takes care of any positioning problems.
Dave
The Emerald Isle