Astrology can be interesting and informative; however, there are many examples of couples that are compatible when their signs indicate that they will not be. Alternatively, there are many examples of people that have signs that are supposed to work well together, that fail miserably. Even though the zodiac may indicate certain characteristics or traits, every person is different. Not everyone fits into the zodiac molds.
Astrology is not a reliable way to decide potential successes of relationships, or a anything, for that matter. Although astrology is popular these days, it has no basis in reality. It is vague and people can read into it whatever they want. If it ever does predict anything, it is a coincidence.
Astrology is not science. Astrology does not help people concretely, and it in no way can actually predict anything or help people, and the cues people take from the zodiac and astrological signs can be very detrimental. Astrology is not useful and its continued existence in the popular mind is awful.
Astrology is not a reliable way to decide potential success of relationships, because there is nothing to astrology. It is silly to think that people who are born within a certain three week period are likely to all have certain characteristics. There is no science behind it. It is strictly for entertainment purposes.
I do not believe astrology is a reliable way to decide potential success of relationships. Astrology, in my opinion, is more a form of entertainment than it is a serious science, since it really doesn't apply outside our own viewpoint. There's no way to decide the potential success of a relationship.