So for a schmuck who knows nothing,is the ResQlink the one to have?

What other models?

Best price per ability on units?

I want it for if truck goes over the hill or stuck in snow storm.

Is snow an issue for these things to work,have to wait for clear weather?

Would this work in a collapsed building or line of sight to sat essential?

Experts,need your advice!

Edit-looks like resqlink is the ideal?