I described this book as "Involuntary Doctor Who" and I stand by that.
All the fun of the Doctor running from place to place, new world, stuff going on, wacky companion hijinks, an enemy in the mode of The Job Title, monster of the chapter, and mix in a lack of control over the multiverse and travel happening whenever he falls asleep and you get this book.
It's not trying to have all that much there, it's just a good premise that plays out with all the adventure and adrenaline you would expect.
With the caveat that this time the Doctor character is, actually, the least interesting person in the multiverse and that's why it's fun.