I understand what you are saying but I have 10 windows voices with P2A, including some European voices, all free. Just download them and install into windows and use them with P2A.
I have used PF3 and it it does sound great but, if you cannot communicate with ATC using real protocols then to me as a RW pilot, imo PF3 is useless other than in a cosmetic sense. Each to their own though.
P2A flightplanning is also very good, especially if you update the Airac in FS and P2A using navigraph so they both use the same cycle.
Try it for free. There is a 10 day fully functional free trial period which also includes three excellent manuals.
I was very skeptical at first but now, I don’t fly without P2A unless I’m on Vatsim. Can also be used superbly with XP11.