It’s very daft, but like the Doctor said: it was fun.
The ‘demon’ is 100% the best character. Such a menacing voice but he says so many silly things. (after that it would be the brigadier. I haven’t even seen a single whole serial with him, but with every audio I love him more)
Not the kind of complicated thought provoking story it seemed to be, with all the “who am i” and brain editing, but not bad. For me at least, it managed to not break the most important rule for Doctor Who: Don’t be boring. It had lots of stupid eye rolling moments, but it managed to keep my attention the entire time.
Btw Briggs for sure just cast himself so he could play the Doctor again.