Convention tickets

I have just booked a trip thru Magical Vacations Travel for the first time, previously using other travel agencies. I noticed they have 3 day CONVENTION tickets with PH. I am very unfamiliar with convention tickets, and thought they had restrictions, but my agent at MVT states they are just like any other MYW PH ticket. Anyone with experiences thru MVT and these tickets?

I believe the only difference with convention tickets is that they can’t be upgraded. I was told that at some point in the past. For example, you can’t use that ticket to upgrade to an Annual Pass. Hopefully one of the TA on here can clear that up.