I successfully got clean in an "intensive outpatient" dual diagnosis program (combined rehab/mental health). I didn't vote because I don't think mine is on the list. They let me detox from benzos on a 3-week taper, I was only able to do outpatient because I was only 20 and had just moved back in with my parents at the time. Of course, I could have raided my mom's possessions and gotten fucked up one more time, but I was going through hell already and didn't want to prolong it.
Only relapsed once since then, I've been staying off benzos but I still do just about everything else. Somehow, only benzos managed to bring me down, I haven't come close to an opiate, coke, or speed addiction, maybe just because I'll never fall in love with another drug...Then again, I've got plenty of time for that.