My experience with solderless:
They serve a specific purpose. Some solderless connectors can be extremely low profile...even more than pancake style plugs. These are great when putting together a pedalboard with tight space constraints.
It's certainly easier than soldering up a bunch of cables, too, depending on what connectors you go with. I can typically cut a piece of wire and get a pair of connectors on in under 5 minutes with just a set of cutters and a screwdriver. It can't be beat in terms of speed and ease of setup...and if we're all creative folks here, sometimes when the mood strikes you don't want to be bogged down in the technical details of rig setup.
But, they certainly are less reliable than soldered cables. They really need to be used only in places where cable movement can be kept to a minimum. But they DO work, as long as you match the connectors to the cable.
Personally, I cut em with mini shear-cut cable cutters: it makes for a cleaner cut with less deformation of the wire, and makes for easier termination.
It's like soldering copper pipe vs using pro-press fittings. Lots of guys will be skeptical of the "easier" or "lazy" pro-press...usually the same guys that had a bad experience with pro press because they don't properly prepare and deburr their joints anyways...but I digress.
There's nothing wrong with having multiple ways to tackle a problem. My guitars get mogami cable and amphenol plugs. My pedalboards are majority solderless.
