The only complaint I could have for TCEA was that on that particular day there were problems with the wifi. That's very understandable when you have such a large crowd of people at a technology conference, but still potentially frustrating. Thankfully, many of the participants were seated at conference provided laptops, which had a wired connection. I was presenting from my Surface Pro 4, and thankfully I was able to use my cell phone as a wifi hotspot. I also had a few flash drives on hand just in case a connection issue got in the way of downloading our practice Class Notebook. A small hiccup that thankfully did not throw us off pace.