I use this enlarger, although mine doesn't have a dedicated timer. It is a fantastic piece of equipment, very sturdy and accurate. I bought mine from a lab that went out of business. I put it in the back of my car fully assembled, with a lot of padding, and with some help carried it to my darkroom. When I got it set up I checked its alignment with a Versalab laser device and it was perfect, it didn't need any adjustment. I use it with formats from 35mm to 4x5 and am very happy.
Richard Wasserman