Today, I commissioned a piece off  Cureboltium and it was an overwhelmingly positive experience.

The entire thing was done in a (public) stream, so I saw the image being made. Cureboltium asked me about my idea for the picture beforehand, including details, and adjusted, the picture during the process as requested, even fine detail.

He picked what I wanted right out of my mind and made it real. Anatomical and mechanical detail, shading and highlighting were used - as far as I can tell - flawlessly and delightfully.
I paid 45$ for a three-hour stream (15$/hour), getting a high-res black and white picture delivered immediately on confirmation of my payment via dropbox.

I am completely satisfied with the final piece and highly recommend checking out  Cureboltium if you want to get something drawn. He does pretty much everything quickly, well and for a good price. The only flaw I can think of is that he gets a bit absorved in his work and may not respond to suggestions or requests immediately, but he's good to work with, patient and generally does good work.