I used one for a while and wasn't highly impressed, 0.5mm accuracy was about its limit. The quill was tilted, the table grooves had been milled at an angle and the fine downfeed was almost impossible to adjust closer than 0.005" because it shifted when locked.
It was a good-enough drill press and accurate enough for the electronic prototypes and control panels I was making on it. It was noticeably stiffer than my Clausing, removed metal faster, and had a larger work envelope. The table travel was enough to reach any point on a 19" x 5" relay rack panel. The 5" quill travel was enough for what I was doing, as long as I pre-tested the reach of all the tools the job would need. The face mill cut steel smoothly with the quill fully extended and locked.
If your sundials are no more demanding of accuracy than control panels it might be OK. It was NOT good enough to make close-fitting machine parts, I took those jobs home to the Clausing.