Would be interested in comments/experience with these connectors. Evidently have been around for a while, but just now finding out about them. Seem to be a nice option to crimps (don't trust them) and solder (so much time waiting!). But look like a gussied up cold solder connections, IMO.
https://www.youtube.com/watch?v=d83XuNDnHLI
https://www.youtube.com/watch?v=d83XuNDnHLI