If you like it, go for it! I'm generally not a siggy fan, but sometimes there are things I like and will buy. Is this the signature stripe floral bag?? If so, it's definitely not me, but I have heard people rave about it in the stores.
I'd go for it if I were you - I am not a signature fan, but had to own the tote in my avatar, which is close to what you are looking at. Other than this bag, I really prefer leather.