This adventure is a mixed bag. It's a nice plot with some fun artwork, but there are definitely some good and bad parts.

Some of the highlights:

• Page 3 has a great encounter breakdown. Each encounter lists XP, there's even an XP line for non-combat rescue!
• Various encounter locations drawings are a great idea! NPC house in the woods, entrance to the Kobold, it's nice to be able to show this to the PCs.
• Layouts for the major encounters are also nice. It should be easy to draw out encounter maps.
• The quest does have 4 or 5 significant NPCs and those NPCs actually have some drawings you can use to show the PC.
• All of the magic items have custom drawings. Meaning you can print them out and hand a nice piece of paper to the PCs.
• The layout is clean and easy to follow.
• Rumours have a good chance of actually being false!
• Some neat random encounters.
• There is a fun story here.

However, where this falls down is really on polish, editing and details.

• First off, there are typos and basic editing / grammar issues throughout the book. This is pretty common in DM's Guild products, but it is significant.
• The NPC introductions are all in-line with the quest. In fact, the quest is kind of "in-line" with itself. Page 3 has an encounter breakdown, but page 4 is not dedicated to an explanation of what's really going on or who all of the players are. Instead it's up to you as the reader to piece together the whole story as you read through the adventure. There's a dragon at the end, but it's not mentioned until page 25 or so when it appears at the bottom of the dungeon.
• The power level is just wrong. The bosses are back-to-back CR2 monsters, but the cumulative experience to that point is less than required for level 2, so 4 players at 1st level will still be 1st level when they reach a boss with a 6d6 breath weapon. To have a hope of surviving this encounter, they need to be level 2.
• Way too many magic items. If the players surive the quest and make it to 2nd level, they have three or four Uncommon items + left-overs from 4 potions of healing and a potion of Poison Resistance. This is far beyond the normal recommendations. It also assumes that the boss wielding one of those three items is going to use is incorrectly. There's a sword listed at "Uncommon", but it's clearly rare, so again, the power level is off.
• Female NPCs are significantly lacking.
• Maps & NPC photos are all in-line, but not included as separate images, so you have to extract them manually if you want to use an on-line table top or similar.

Some samples of editing / game problems:

• Overland map on page 5 has no scale. It also doesn't detail the encounter locations. There's a river crossing but no river. Then dungeon is clearly in the mountains, but that doesn't seem to correlate. And the river is important because it's poisoning the town.
• The "witches cottage" is supposedly on the edge of town, but somehow didn't make the map of the town.
• Sz'thess, one of the bosses, is actually detailed twice. Once in-line and once at the back of the book.
• Faeden, a ranger who may actually join you on the quest, has no stat block at all!
• Encounter breakdown on page 3 is wrong, listed XP for SZ'thess is incorrect.
• A bed at the inn runs 5gp / night / player, which is well beyond the normal lifestyle expenses in 5e. Especially for some small town.
• The "captured person" you're looking for is a 4th level Druid. It's really unclear how she was captured by a couple of kobolds. Especially when she's going to be rescued by a bunch of first level PCs.
• The other prisoner is listed as Guard who apparently survived a fight with a real dragon, not the wyrmling in the book, despite having 11hp! It's not even clear why he's even a prisoner after two years. He should just be dead.

At the end of the day, I expect an adventure like this to make my job easy and this thing really leaves me with a lot of work to do.