Maybe not the first one to start on, but I enjoyed running DDAL5-04 - In Dire Need, as did my players, especially getting one player to run a two-hour timer, so everyone could keep an eye on time ticking by; I wasn't overly specific on what would happen if the PC's didn't succeed within two hours, but they all knew they had a two hour cut-off to "win" - it worked well, lots of creativity came out. To be honest, I actually gave it a good three hours, with a good half hour preamble before the timer was officially started, then some time at the end to get back to town etc; I think most AL adventures are particularly difficult to fit into 2 hours, but I only run home games, where the pace and timing is more flexible.