I'm currently using four of them. I have a basic ole Omega D 4x5 with colorhead for small b&w work, then a Durst hi-output 8x10 coldlight unit,
then my two "hotrods": a 5x7 Durst with custom additive colorhead for critical film work, and "Ole Zeke": a 13 ft tall additive 8x10 color printer
which I built from the ground up - maybe one of the best enlargers on earth for color quality, and built to withstand an earthquake; but has
its idiosyncrasies in the electronics. Thinking of adding another 8x10 Durst dedicated to dye transfer printing once I can clear a path to install it.