This is a great adventure. It's nice and quick, fitting firmly into a two-hour time slot. It's clean and well-organized, and it even spells out suggested tactics for the enemies, so it's very easy to prep. The spellcaster enemies make for some juicy fights for players interested in a challenge. (We've run this one a few times at my LGS and it's garnered a reputation as a TPK machine. That final fight is brutal if the party is low-level.) And while the plot is relatively thin, it's enough to offer a good hook into the adventure.
It's also well-edited, which is a pleasant surprise! The only mistake I found was that it says the enemies use their action on their first turn to cast Spiritual Weapon. Spiritual Weapon is a bonus action. (EDIT: This has been fixed! Thanks!)
Anyway, "Wreckers" is simple, but well-executed, and I'm a fan.
[5 of 5 Stars!]