I've dipped into Big Finish on and off since their first story (appropriately enough, another multi-Doctor story, The Sirens of Time). I like the idea of what they do, I mean it's proper Doctors in new stories. But more often than not, they never seem to capture whatever it was that made old Who so watchable.
Whilst I can watch a classic DVD over and over again, there are only a few BF CD's I've ever felt the need to listen to more than once. And it's not the audio medium that puts me off, as I've listened to most of the 2nd Doctor's BBC Radio Collection soundtracks on numerous occasions.
I might have considered getting this particulalr release, given the special nature of it (and the 'reunion' of 8/Charley). But with Briggs on script-writing duty, it just doesn't grab my attention. BF have released some very well written stories over the years, but Briggs didn't write any of them. Don't get me wrong, he's not a bad writer. But he kind of sums up my feelings about a lot of their output, in that his work always feels like it's written by a fan writing a story, rather than a by a writer who is also a fan.