About as good as Doctor Who gets. Fabulous, emotional and high stakes ending to an amazing series.
Truly knocks spots of the recent reboot TV show, I've listened to the Eighth Doctor adventures in their entirety a few times now and frequently find myself itching to do so again.
We'll done Big Finish, this was the at the height of their powers, the quality has been diluted a little in recent years thanks to nonsense from the reboot creeping into the releases and too many series to keep a track of.
If you keep a clear focus on the original series (what Big Finish does best) you're in for a treat.