Seems like a workable model and a good one. But I hate it when they, as many others do, "bad-mouth" other models as basically being unethical. Like the claim that this doesn't , oh price discriminate (I cant remember the quote now. sorry) like the retainer fee does. $33/5 minutes can add up really quickly. I'm not passing a judgement of if it is or is not a fair price. But It is not necessarily any more fair than $1000/year for "all you can eat." One bad thing is people may not ask necessary questions because of the fear of another 5 min. $33 charge. One good thing is people will not answer questions in a stupid manner for fear of dragging out the visit.(How long have you had this pain? Since forever, doctor! Oh, one more thing! Is a cold contagious?) It takes about 5 minutes to write you an excuse from work letter. Do they charge for that too? (Everyone probably should.) Every model can be open to criticism.