He read the design brief and understood what I was looking for and gave me what I need. 6 out of 8 designs that I chose for my students to poll were from Retina99 and my students and trainers LOVE it.
The number and quality of his design submissions spoils you with choice - it appears that his mantra is to fill you with delight.
A relief for any self-publishing authors, Retina99 accommodated me with his patience and the number of edit requests I made at the final stage of changes. He's excellent at every step of the way. Highly recommend!