"Run! Bitch! Run!" is a grindhouse reinterpetation of "I Spit On Your Grave," which in itself is not the height of art. It was a film that ran afoul when Siskel and Ebert were in their glory days. Their point was it was a revenge film that used the protagonists need to revenge as an excuse for sorid violence. I do believe that Ebert said it was the type of film you needed a shower after viewing.
"Run! Bitch! Run!" is not an improvement. It's about on par with "Hostel" but with a slightly lighter touch. That again, doesn't make it better. Inhumanity with a wink and a nod is almost worse in fact.