I'm not sure it would take the long term to determine reliability: there are engineers who specialize in that,and there are software tools to simulate the reliability of a mechanical systems.
Whether this company did this or not is unknown, if they are offering this system on a per month basis, it makes sense they did some reasonable level of analysis of costs, because it would reduce their risk greatly.
Whether this company did this or not is unknown, if they are offering this system on a per month basis, it makes sense they did some reasonable level of analysis of costs, because it would reduce their risk greatly.