I've started my first Dungeons and Dragons 5th edition game last week. I intended it to be a one-shot adventure to show off the rules, but wanted to leave some opportunity to have it grow into a more robust campaign. I'm using the Legacy of Fire adventure path, and starting off with Howl of the Carrion King, the first adventure in that series. It converts incredibly easy, primarily because one of the core monsters in the first few encounters meshes so neatly with 5th edition rules (pugwampi gremlins, who broadcast an aura of unluckiness, translates directly into the "disadvantage" mechanic of "roll twice and take the worst.")

I was pleased that everyone in my group wanted to turn the one-shot experiment into an ongoing game, so I'll keep it rolling as long as player interest keeps up!