I think in a relationship it's more important that you have similar life interests and goals, etc. I have known many couples who seem to lead separate lives together. That is, neither one seems interested in the hobbys, sports, or other activities of their mate. Seems to me life is much happier when these interests are common. If the sex isn't all that you would like it to be at first, its possible that it could be corrected with good communication. But if he/she dislikes, or has no interest in the activities you are involved in, that can be more destructive to the relationship.
Just my opinion for what it's worth.