For this very specific purpose, this is a great product and the kind of thing that has been thoughtfully put together. I like both the packs and the armor/arms bundles. This builds off of the few examples shown in the main books and expands it out to a variety of backgrounds. This isn't rocket science, but for $0.50, this gives you an easy way to pick things at character creation.

The formatting was nice for this, and there were some interesting ideas in some of the feats. Many of them sounded more like backgrounds with an extra +1 to an ability score rather than an actual Feat. I guess I think of feats more as consequences of experience adventuring rather than inborn abilities. Some of these would be more appropriate as Variant Human starting-out feats but not as something you'd pick up at level 8. Some of them also seem like interesting skills but not as useful in a small party of adventurers as in a large combat group, say.

So it was ok as a product. I'd probably price it at $0.50 rather than $1. A few things are of interest, though none made it into my game.

Journey Through the Center of the Underdark has a lot of encounters that have a lot of thoughtful detail, that incorporate both fun and adventure, and that are easily modifiable, with specific guidance in the module for each one.

These are instantly usable for between major plot point encounters in Abyss or really any underground travel. I appreciate the concise booklet, but there's plenty of detail in there to run each one.

This could be a great "Guest DM" encounter set for a party travelling through the Underdark but with a DM who's going skiing next week.

Worth more than the $1 it costs, one of the few products in DMG I've found so far that I've thought this about.