Schema therapy is a cognitive therapy based on people developing so-called "schemas" (as far as I understand, patterns of cognition and behavior) early in their lives and then using these schemas to their detriment later. Schema therapy is based on identifying these schemas and leading the patient to develop different mechanisms of dealing with these situations. (if any of that is very incorrect, I'd be happy to be corrected)
What personality disorders is this technique successfully used for? Are there any where it is recommended against?