FIRST TRY
I am on Disc 2, just entering Conde Petie to get married, and I am around 7h 15m. This is an approximate time as I can't be bothered to check it accurately.
Note the following:
1. I didn't get Quina on Disc 1 so I don't have Limit Glove
2. I don't have a chocobo
3. My characters I wish to use in Memoria are Zidane, Steiner, Freya and Amarant, so the others are weak and hardly any abilities
So is it worth continuing?
My guess is no.