The success rate (as determined by the percentage of divorce per marriage) for parent-arranged marriages is better than the rate for Western marriages. Of course, there are other factors at play, because in countries where arranged marriages are typical, women are at least in some ways, second-class citizens.
In some countries (China and India, notably) astrologers and geomancers are used to find Mr or Ms Right. In India, you have to choose someone of the proper caste, language and subcaste as well, and all manner of dating services have sprung up just so these eligible persons can meet.
I don't think that every culture should have to follow the lead of the US or the Western world. It is a bit arrogant to say we have all the answers, considering the number of Kramer vs. Kramer divorces and such.