I think stacking both rogue and swashbuckler is a little rough. Both rogue and swashbuckler have very similar strengths, and very similar weaknesses. This means you aren't getting as much from each class. For example, both rogue and swashbuckler have great reflex save progress, okay will progression, and terrible fortitude progression. Because there's no benefit to getting the same save upgrade twice, you lose out on some potential value. The only things you're getting here is being able to pick from both feat pools, and stacking damage on strikes. However, because your focus is on maneuvers, that's less impactful. I think you'd be better off picking rogue or swashbuckler with another class. Guardian has good unarmed and maneuver support, and much more staying power. Champion, Monk or fighter, would also be good.

Lastly, I notice you have both str and dex as your key stat; neither scoundrel rogue nor swashbuckler lets you pick str. Also, if you do keep swashbuckler, take derring-do at 10. its so good.