This past weekend was my first Balticon (in Baltimore, MD). I had a blast. It's very much a writers and readers convention, with some big names and plenty of smaller, regional authors like yours truly.
Everyone was very friendly, as if usual for a SF/F con. One of my agents, Joshua Bilmes, was also there, and it was great to soak up some free meals from him. I also met Elizabeth Moon for the first time. She's much friendlier than you'd think a big-time author would be.
Also there was Myke Cole, who shares an agent with me, and who's debut novel, Control Point, comes out next February. Myke is a great talent, and we had several great conversations.
If you live in the region, you should really check out this con.