Tubeless tyres for cargos, sell it to me.

[Shaun Moulds]

I keep getting tubeless shoved down my neck and I think it's probably for me but I fear the jump. The thing that worries me is most is these riders (no shame here) are leasure riders, only doing a few thousand km a year at most. So, has anyone ran a tubeless set up in a cargo long term? Does the sealant last long enough to only replace when I'm replacing a worn tyre (once or twice a year) and do I need a special pump?
I'm thinking I want to run lower pressures on my Orox.

Cheers.