I have the pro-30 -- that's their big single-burner. I'm very happy with it, though as others observed it does have some issues with wind.
If I recall correctly, the "mountain" series (which would include everest) are high pressure. They will work fine off a tank, but if you want to connect them to the low pressure outlet on the side of your trailer, you're out of luck. No combination of adapters will work for that.
2013 Escape 19 ("The Dog House") , 2012 Nissan Frontier