Lock ‘n Stitch messed up a project for me in 1997. The project took them two days to weld at 900°F. We had to remove the weld, porosity, and find a new shop to get it done right. Lock ’n Stitch did not get paid.
I like the threaded fastener system they have for casting repair; although have not used it. It looked like a useful system and with fewer problems than that generated by welding cast iron. But if they are a complete mess…