I just built two BYOC kits - Marshall Blues Driver that has the board and pins, and a Large Beaver which required each wire to be hand soldered to the footswitch.
I strongly prefer the foot switch with the mini board than with bare wires. The mini board was a breeze to solder, and I like the small number of wires left. I can't speak to the reliability of the pins on the Blues Breaker, but my son has not complained about in the 2 months he has had it.
The bare wires on the Beaver's foot switch were the only part of the assembly that frustrated me, and they ended up in bit of a mess.
The fun of assembling the kit was reduced by this and frankly, it made me think about looking into GGG kits.
On most connections, the wire's vinyl coating softened and spread at the ends of the wires, so there is more bare wire exposed than there should be. I found it difficult to solder two wires to the same hoop. Hemostats for a heat sink were not very helpful because they squeezed and corrugated the vinyl near the ends. I also accidentally touched the iron to the side of the coating of a couple of wires, thinning the coating and perhaps even exposing a copper strand. After thinking about the fact this pedal needs to work reliably for a long time, I realize am going to have to desolder all of the connections and put some shrink wrap on each wire so I can have "booties" that properly insulate all the ends. That is going to take a lot of time and will be a bit frustrating. It's going to be difficult to shrink those booties without melting any coating. My eyesight is such that I need to use a magnifying lamp, and that makes soldering and shrink-wrapping a number of individual wires more difficult.
So ... two thumbs up for the new assembly!!