I like them a lot. The edge of the board has copper on it too. More practical on a 4 in 1 as it allows you to add wires oriented pointing up or down, rather than out the side. https://rotorbuilds.com/build/22544 This thing turned out super clean.
Okay so I tried 4 of these tiny half circle welds, I think they're pretty good lol. Maybe I'll enjoy the half holes when they're bigger? (Lighter added for size comparison I could barely see the welds lol.)