Meopta Opemus 4x4 what do you think?

$9.95 is what it went for. Rather than making a mask to fit my Meopta 6x6 I'll now have an enlarger "dedicated" to 127 format. I'm assuming the 4x4 is pretty much like the 6x6 (which is a pretty fine machine IMHO) but I've never actually seen one outside of the photos on that auction site and Meopta's website's history pages. Does anyone here use or used a 4x4? Any advice? This will be used (I hope) to make a portfolio of 127 Brownie images.

How on earth did I end up with six enlargers? Is this an illness of some kind?