This episode is appropriately titled "Ethics" because there are two ethical dilemmas here - assisted suicide and the doctor's first duty.
The first is frankly not that interesting. We have lots of sentimental junk with Alexander, the kid who ruined Worf. Picard gives some pompous speeches about Klingon culture to Riker.
The second is better, perhaps because Beverly Crusher was among the most underutilized characters on the show. This story isn't just about using risky procedures on desperate patients; it's about what a doctor's first duty is, and what to do when that duty appears to conflict with a patient's desperate desire. Gates McFadden carries an episode that could have been much worse.