Went to this show last year. It was the second show that I ever went to and was really impressed walking around and seeing all the coins on display.
It's held is a large auditorium at the Hilton Hotel in the Carillion Center in St. Petersburg. I went there on a Friday last year (1st day it was opened) and there is no charge to get in.
The first show that I went to I was totally unprepared for and didn't bring enough money to satisfy my need.
If you plan on being in the area I think that you'll be impressed. The 28th I believe is for dealer setup. So Friday or Saturday would be the better dates to attend.
This year I do plan on going over to Orlando for their FUN show sometime in August.
(edit) I'm not a member of the club but did enjoy their show last year.