I'm shocked they are still around!
Poor quality machines and service. We finally ditched them ~3 years ago.
Back then I asked why we ordered from them. I was told, "oh if there's a problem, they'll send someone the next day". They did send someone next day, 2 to 3 times a month! How about not having any problems to begin with? By the end we had towers where their cables fell out when they were on their side , no next day service (yet promised over the phone), parts missing, repair man not turning up, etc. etc.
Wonder why your public sector organisation is crap? Not only because they are using Stone computers, but the leadership and management that tolerate such crapness.