positives: the su!cide will be supervised, safe, legal and controlled. it'd be more comfortable, considering it wouldn't be a secret, and it would give the right people more of an opportunity to say goodbye, and would make the patient's(?, sorry i don't know how to refer to them) transition from life into death more smooth and comfortable.
negatives: it's still su!cide, and the moral conflict still applies. i think a physician-assisted suicide(euthanasia) carries all the moral problems of a normal suicide, without the physical problems of the legal issues etc.
hope this helped