I just got back from Equestria LA 2015, my first convention ever...and it was AWESOME.
I got to meet a bunch of people who worked on the show, the comics, as well as some of the popular members in the Brony Community. It had some pretty cool panels too with some of the Guests of Honor and a lot of community panels as well. There were some minor delays with autograph times and a couple of panels started late, but it wasn't much of a major issue (at least not for me).
I had a great time and I'll definitely have to go back again next year.