I have. It depends on how you feel about exploitation/pinky violence films as to whether you'll like them or not. I actually think they're good for the genre, but being those types of films means there's a lot of cliches by default. Female nudity, rape, and abuse from both men and women. The main character, and some of the other women in the series, are usually betrayed by men in some way. The main character gets brutalized a lot, but gets her revenge. If you're okay with content like that, check em out. I think the way they're directed is cool, and I like the main actress.
In other words, if you can't stand any sort of rape/revenge type thing, avoid them. But if you are okay with exploitation type stuff, they're pretty good for the genre.