The shape reminds me a lot of the neo denim speedy.
That being said, I prefer the neo denim speedy ! Samantha Thavasa's star bags aren't too bad, but they're rather pricy for a bag that looks so.. cheapy.
I hv purchased a leather Samantha Thavasa when i was in Tokyo, really nice with gd workmanship but then price was not cheap. The VB range is also nice but more pricey. This brand is hot in Tokyo. I luv it!!!!