ToS happens to be my favorite game of all time. Will definitely be interested to hear your thoughts on it. Perhaps you can make one of those topics and update us every few hours as to where you are, impressions, etc.?
As for Berseria, it was a great game. I've played and beaten 7 of the Tales games. Berseria is practically tied for 2nd for me. So, hopefully the rest aren't a downgrade for you!
The person above me is dissuading you from playing Graces. -shakes head- Graces, admittedly, has a bottom tier story. But, it has amazing skits, a great cast of characters (my avatar happens to be one of them), and a pretty solid gameplay. People tend to either love the combat for Graces, or hate it. It's fairly similar to how Berseria is set up though, so I think you'd be on the side that likes it. It's great, fast, over-the-top action.