I'm using these connectors for making my own MIDI cables in my quite specific studio setup.
- excellent price to quality ratio
- sturdy with proper strain relief
- metal casing
- easy to solder
- fit well in all MIDI sockets
I've been using these for quite some years now. Some users might find it irrelevant but I like how these plugs slide into all MIDI sockets on all of my devices, while I hade some ready made cables that had to be plugged in and out with decent force.
While not a con, I'd like to see more variants of this connector, e.g. 90 degrees angle, etc.