All x Hentai is a tube site that focuses on picking the best hentai videos from popular tube sites like Pornhub or XVideos. You can see there are few short videos = most of the videos are long hentai porn clips. But they're not strictly cartoon/3D. There are videos with cosplay girls wearing cute costumes from manga and games, too.
It is a new site, so it is understandable not to have a massive number of videos. Still, as an anime/hentai fan, I would like to have more videos to choose from. Hope they'll keep working and make this site bigger, with more videos. I wish them good luck, and I can tell you that it is worth trying.