Wow, I'm surprised I haven't seen this before. As I understand it, this started as a line of t shirts and such and then became a cartoon. Generally, that's not a good way to go, but this is just so cute it's enchanting. Ruby is in her own little gothy world but she's incredibly happy and cheerful. This allows her to help rather odd friends.
There's nothing ground breaking here, but the animation is crisp and the designs are wonderful. The stories and characters are amusing. Really it's a sweet show.