From what I have read and researched about coffee enemas, only on the Gerson protocol where the patients are mostly terminally ill patients (with highly compromised livers), should you do coffee enemas daily. Also they are eating a highly cleansing diet on the protocol which releases the toxins quickly. Hence the need to clear theier colons and liver everyday.
Although coffee enemas are extremely cleansing and effective at cleaning the liver, using them everyday may not be a good idea. Once a week at most is more favorable. Everyday use could be too stimulating for the liver.