You also have several things in common, for example you're both home loving, and both value financial security, tending to save or invest wisely.
You're ambitious, down to earth and responsible, while your Cancer is more interested in the home and family.
On the surface this can make a great team, and if you can agree on just a couple of things it can be an excellent relationship.
It has the same potential in the long term, as long as the above relationship issues haven't created too big of an emotional barrier meanwhile.
It's important to note however that we're looking only at sun signs here.
While you may admire and embrace that ambitious nature, you may find that the practical implementation has many aspects which you don't enjoy nearly as much.