DIY or Hire a pro?

Submitted to Community Café

I can't decide whether to refinish our tub, or Hire a pro. There apparently was a chip, on the edge, and the previous owner patched it. In off white. With who knows what. I think it's the interior paint they used in the bathroom! It also has one small chip, on the floor of the tub. Ahhhhhh! What to do!