I mostly wanted to meet the YC folks in person to see what it's all about.

So, I applied to Startup School last year and got in. I went to the YC offices afterwards to hang out. I had read almost all of his essays and also Founders@Work, so I didn't have to bore them with the same old questions. My questions were mostly about Canadian startups, and the statistics on how many applied and how many moved back. I was also at a different stage than you are, so my questions were also around how to figure out what people want, etc.