The Beseler 23C II that I have is the most durable enlarger that I have used. Being without a permanent address such as mine it is a dependable part of my lifestyle. Not a lot of people I know (including me) have a residences for loner than say 3 yrs . Seems like the enlarger goes farther than me. So for me I prefer something like the Beseler to remain consistent in operation. Seems like a "tank" as enlargers go. But that is my style maybe not yours.