Here is the thread you should probably post in, just to keep the continuity and information about Spoon Tailor in one place for future interested parties.
I'll post a review and pictures of my first shirt there when it's done.
But to answer your question, I went with a $95 simple white, textured cross-hatch fabric for my first one just to get the fit and measurements down before I consider anything else. I think it was like $103 with tax. From what I tried on yesterday I'm excited at the prospect of having them do more for me in a variety of other fabrics - only a few things needed tweaking, which seemed to be perfectly reasonable given that I'm a new client.