Mission 1: Fun little bit combat well balanced for up too level 3's, the skill check for sneaking past the brigands was fun. (Too bad all the players I get are murder hobos.) The boss fight at the end is a nice challage with fourth level spellcasting can make a fight seem that bit more real for the characters.
Mission 2: New is always good, and Dino races are fun, this was straight forward wasy to follow but still made things feel organic.
Mission 3: Standard skill checks and combat nothing really to say about this one, just the Elf woman being pulled and dragged into the mesh, with no way to rescue her, would be better if she was already on the alter for sacrifice to give her last words.
Mission 4: A nice search and rescue mission, plenty of combat to go around, plus the traps were easy to run and not overly complicated as well as the solutions.
Mission 5: Combat was nice and challenging, the misdirection of the Yuan-it was a nice touch as well as their involvment.
All in All anyone of these Missions are great to run at any time, or if you really need a anothe DM ro run somthing.