I'm A Banana
Potassium-Rich
So I've been skimming through the Dungeon Master's Guild, looking to see if anything interests me, and I've picked up a few PDFs. But...
Oy.
Okay, folks, look. The Dungeon Master's Guild market/license for D&D stuff is a great opportunity and a lot of fun. I get why so many of you are eager to get material up there ASAP. But I hope you'll accept a bit of free advice from someone who's not just a fan, but a professional.
Appearance matters, and editing matters.
You need to know how to put a sentence together, and you need to have your work read over by other people who know how to put a sentence together. I promise you--promise--that if you have obvious typos or overtly poor grammar in your product description, a lot of people are never going to even look at the product itself, let alone spend any money on it. There are several people who have already lost me as a potential customer based on a single sentence of their product entry, because it was so poorly written that I don't trust them to be able to deliver a usable product.
Take your time and do it right. You're not getting a leg-up on the competition by rushing things; you're shooting yourself in the foot.
It's also worth noting that this is why you should RATE AND COMMENT ON PRODUCTS YOU BUY.
If you got burned by something awful on a product, let everyone else who looks at that product know, and by the same (perhaps even more important) token, if the thing is really solid, bump it above the cruft.