Is Massive Darkness: Dungeons of Shadowreach Worth It?

About Massive Darkness: Dungeons of Shadowreach, from BoardGameGeek:

Massive Darkness: Dungeons of Shadowreach takes the epic dungeon-crawling action of its predecessors and brings more thrilling adventures to this beloved setting. Step into the boots of six new lightbringers as you battle against the forces of Darkness in the depths of Shadowreach, a forgotten realm of endless danger and mystery. This standalone, co-operative adventure for 1-6 players allows you to explore fantastical realms, facing a diverse array of enemies, formidable bosses, and insurmountable challenges. No game master is required for this board game adventure - gather your party and use your skills to survive the twisted caverns, battling vile monsters and mighty bosses in your quest to protect Shadowreach from the forces of Darkness. -description from the publisher