Heavy Fermion metals are intermetallics containing lanthanide or actinide elements. These systems provide a multitude of unconventional superconductivity scenarios including multiple superconducting phases as well as co-existence and competiton with other ordering phenomena. Of particular interst is the fact that superconductivity occurs close to a Quantum Critical Point in many Heavy Fermion systems. I will give a brief overview of Heavy Fermion superconductors and then focus on theoretical challenges and recent surprises in Heavy Fermion physics.