Well went here for the Southern Christmas show and I did it after working my 5 o'clock job. I wish I would have actually taken a PTO day, but since I am still fairly new I didn't have any. This space is great for expos of all kinds. There is so much to see and there are three buildings, at least that I went through (could be more, but don't think so).
So if you are going to an expo, it is probably one you really want to see. I would suggest going during the week, even taking a day off work if you have the PTO time. Weekends will be much busier, and after work leaves you pressed for time. But as always, do what you can and enjoy your expo!