For $1.99 this adventure is a BARGAIN. (and for the very low price, considering the size of it, I'll rate it at 5/5).
It'll likely take you a few hours to play through, but more importantly it gives players the ability to play dragons, which opens up a whole new series of opportunities for roleplaying and tactics for the players.
The opportunity for players to test new dragon types (I hope to see more of these in the future, as in full-fledged rules for them to use as opponents) and to use old favorites if people want is much appreciated. So is the customization options of the (primarily) spell-casting dragons, to suit the needs of the individual player.