Hi jerry, do anything with smallish seeds, juice and skin you want to filter out - I've squished raw blackberries, raspberries, cooked goosegogs and tomatoes so far, and would imagine it would process any small-seeded berry fruit e.g. currants.
That passata machine has proved to be one of the most useful bits of kits in the kitchen at this time of year! When I make 'mango' chutney and try ketchup from green tomatoes in a month or so, I'll squish the cooked pulp through the machine as our household likes their chutney smooooth.
For passata we put the pulp through four times so the residue is practically DRY

Like you say it's astonishing.
Kids can't resist turning the handle, can they? And mine is 23!
Will remember your tip re San Marz., others have said the same so I know what I'll be growing next year
Happy bottling!