Disclaimer: I had the time of my life meeting the people I came by and I will definitely will be back next year. (As long as it is in Vancouver)
My main complaint is that there wasn't enough space for everyone to go. The Vancouver Convention Centre is an absolutely huge place but BYOC took about half of the space. BYOC was mostly dead from 11-6 while the convention was open. That pretty much left half the space for 3.5k to lineup for about an hour to play some of the booths. If there was more booths and a bit more space, people would have spread out to other booths and the lines would have been shorter and you wouldn't have to try to walk through people. I'm sure BYOC was so fun when the convention was closed but my goal wasn't to go there to play games.
And the meet and greets. I understand that people want to talk with their favourite creators (and so do I) but I realize that other people want to meet their favourite creators and move on to do their own thing so I keep my interactions with them short and sweet. Picture and a signature. Near the end the volunteers moved people along setting a two minute time limit. Which was good and people started to move along.
Now even though I had to wait an hour just to shoot 5 darts at a board to get a bag and such that doesn't mean I had a great time with my friends. I just think that these early LTX's are test runs for even better and more efficient events.