A) It's not the same as thing X B) It's better than thing Y, because of Z C) Their Q (which is part of their product) is really really good!
To someone landing on the page, that doesn't tell me what they do on a grander, more abstract scale, it only gives me a pinhole view of parts of their app, and thus prevents me from seeing the bigger picture. I'm sure the product as a whole is great (after all, I know each part is great), but I still have no idea what the product as a whole does!
I've read the FAQ, and I still can't quite figure out what this is offering. Can anyone condense this into a single paragraph (or better, sentence) that describes concisely, and completely what prismic does? I really can't fathom it from their website...