Here's my 6x6 Chromega B enlarger next to a 4x5 enlarger (beseler cb7). The wide angle perspective make the comparison a little tricky. But you can see a 4x5 enlarger head is about 6x bigger to do the same thing, the baseboard is about 50% larger, frame is more substantial, etc... It also requires a cooling fan which my 6x6 enlarger does not. To get it up on the table, I put an eye hook in the ceiling (hitting a floor joist above), and used a come-a-long to lift it into place. The little enlarger is easier to use, so I keep it for the small stuff.