[Amazon Echo] Skill vs. Hue emulation?

I ordered my first Echo today. Can some experienced Echo users tell the key differences for both bindings available please? (Expect from the myopenhab cloud needed for the skill) Why would one use the cloud only Echo skill? Is it any better or faster or anything? Will the Hue emulation receive updates in the future?

What would you do? I would prefer, not using any cloud service. But if there is any good reason for using the skill than I would maybe.

Thanks!

EDIT: And will Hue emulation work together if I already use the hue binding for my lighting?

Some questions are answered in this thread: Official Alexa Smart Home Skill for openHAB 2