Wax looks great for a few weeks; a ceramic coating protects for years. The right choice comes down to how long you want the protection to last and how you use the car.
Wax is a soft, natural layer that gives a lovely warm shine but wears off in weeks and offers little chemical or UV resistance. It's fine if you enjoy re-applying it often. A ceramic or graphene coating is a semi-permanent bonded layer that's far harder, slicker and more durable.
For most owners the coating wins on total cost and effort — you pay once and get years of easier washing and stronger protection. If you're unsure, Andy will give you an honest steer based on your car and how you use it.