Optical minilabs are really a thing of the past. The last one in my area closed down about two years ago, and the quality was inferior to scan & print. The problem is that most optical minilabs used low-quality glass (compared to enlargers), and the glass was not regularly cleaned. I have heard that Blue Moon does an excellent job, but most remaining optical minilabs will be inferior to a Noritsu or Frontier print.
*note: This does not apply to hand-printed optical enlargements. These are still far better than scanning, IMHO.