It is difficult to assess compatibility in the absence of criteria. Having a clear list of priorities against which to measure suitability will help you make your decision with confidence. You may not know what you really need in a life-partner until you actually spend time dating process.
Your dating experiences will teach you a great deal about what really works for you, so do not be afraid to consciously adjust your list based on hard-won experience. Update your list of needs in accordance with what you have learned about yourself and the qualities you have discovered you need in a spouse.