You have to get a physical exactly one week prior to surgery. Schedule your surgery on a thursday or friday, and you will be back to work Monday.
Buy a pair of pants one size too big. The biggest pain is the pressure on your intestines from the gas. They pump you full of CO2 in order to have space for the fiberoptic camera. That gas puts pressure on you for 10 days. It will feel like 24 hours a day you have to take a HUGE dump, but you cannot. And it hurts to try.
Then, it's just gone, and you're fine.
Oh, and don't do any significant core exercises for a few weeks, despite them telling you that you are totally fine. It can hurt where they staple in the mesh.
The surgery itself lasts about an hour. You will be knocked out with general anesthesia. If you don't have a problem with anesthesia, then the surgery is as close to risk-free as you can hope for.