Already soldered 2 dactyl manuforms (one for home and one for work), not going to solder another one until one breaks :)
Though honestly if it broke, I'd probably just pay for the next one, not worth the labor (literally hundreds of solder points and hand wiring over like 30 hours). I did it mostly to learn about soldering/electronics and thought it would be fun.
The careful hand wiring is the laborious part, which the flexible PCB seems to solve. So I'd imagine it would take a 30 hour task down to 2 hours?