For me, this episode is a mixed bag. It sets in motion a sufficiently interesting dilemma, with Kirk's case against Mudd complicated by the fact that all those he considers Mudd's victims are willing participants in his scheme. Indeed, when Kirk offers his assistance, the women and miners alike side against him with Mudd. And so there is this wonderful tension: clearly Mudd is a scoundrel, but should the condemnation end at Mudd, or extend to his current trade, as Kirk seems to feel? This tension goes unresolved, though, in favor of a far less complicated commentary on drug use. The women are paired off with the men, the Enterprise gets its crystals, and Mudd is taken into custody for previous offenses, but the audience is no closer to understanding the ethics that surround love for money than at the episode's start. With this shift in focus, we trade an interesting issue for a far less contentious one. In my opinion, that makes this one of Star Trek's weaker early episodes, in spite of its promising setup.