I am uncomfortable with the question because any possible answer is going to be opinion based, and StackExchange in general frowns up on such questions. But then in any philosophy/religion forum several things are obviously going to be opinion based, so if anything the choice of StackExchange as a medium is probably more at fault.
Osho calls himself a Zen master, in fact the word Osho means teacher in Japanese Zen, but he also doesn't fit into any of the usual pigeon holes of Buddhism or even the ones of Zen.
Osho Rajneesh often has some great ideas, but he also draws fantastic conclusions now and then that aren't backed by any logic, data or reason and appear to be self serving. One could make the case that this was an intentional trap for his unwary students, but then everything can be turned upside down in dharma if you try hard enough.
I can't recall specific examples of such missteps since I stopped turning to his ideas a while back, but he's like the Tibetan saying, honey on a razor blade, if you are careful there's honey to be tasted, but if you are careless there's the razor blade.
The sex and money itself isn't a turnoff for me - religion works in many ways, and crazy wisdom has a long tradition of such persons.
Drukpa Kunley the 15th century Mahamudra master wasn't called the "The Saint of 5,000 Women" for nothing, his principal method to enlighten women by having sex with them. So too to a lesser extent with Chogyam Trungpa.
Ultimately it comes down to the student more than the teacher - there are students of the Buddha, like the King Ajatasatru who starved his father to death despite having listened to the Buddha several times, and there are those who get enlightened despite following a fake teacher.
I am sure Osho has helped a few people out of their problems and addictions in his life, in the end we cannot judge others or guess their karma, we can only safeguard our virtues and wisdom.