I have been using
shadow.tech cloud computer for a while and am generally happy with it.
You get a lot of computer for the money. Obviously not everything is perfect and there is room for improvement, but it is already a viable solution.
Pros:
- replaces a decent gaming computer
- does not use any room (like you I do not have any available)
- price! (energy costs of a gaming PC would already represent a good fraction of that price)
- supports USB peripherals (I use it for flight sim with yoke, throttle and rudder pedals)
- includes a Windows 10 license
- works on any low-end computer (I use it with an old dual-core Microsoft Surface Pro, I don't expect any problem with an i3 Mac Mini)
Cons:
- only support 1 monitor as of now
- waiting time is expected to be loooong if you register now
- needs a good internet connection
- available only in limited areas of the world (Western Europe plus some regions of the US)
- auto logoff after 20 minutes of inactivity (used to be 2 hours 30 minutes, reduced to 20 minutes due to COVID-related increase in demand.) I hope this is a temporary problem...
- Mac client not as good as Windows client. (The above-mentioned peripherals are not always recognized on the Mac. Never had a problem with my Surface Pro.)