Depends how someone sees it.Lol, can this get any worse.

Because those fridge units are legal in the "West", the only alternative is the LN2 closed loop solution made by Kingpin.
The benefit of that are that there is no heat to dissipate generated by the cooling solution, also you need some pretty big space to store the two 160 litre tanks. And replace one of them every week or so.
The negative, explain that to the wife, let alone the space needed.....
Can imagine the argument "Honey we must buy a 5 bedroom house and need the downstairs dining room as office, so I can keep the 2 cooling tanks. Why the dining room? Because I do not want to lift upstairs 160 litres of Liquid nitrogen every week, it will mess the stairs carpets".
Not according to the manufacturer, depends the model some use R22 others R134a. And still R134a is banned.Think they can all use R134a?