I certainly thought so, but it's often a personal reaction so I can't say you will. It's tricky, because I've read all the books more than once over many years, so I can no longer see it from 'new' eyes. I also have a long (and positive) experience with British fiction from the early 20th century onwards, so can easily recognize his "uppper-class twit" for the protective colouration that it is, and see underneath.
I'll make a suggestion, Jon. Watch one of the BBC dramatizations of the Sayers books. There are basically two sets -- the
Ian Carmichael adaptations of the ones that didn't include Harriet Vane, and the
Edward Petherbridge adaptations of the ones that did. (Though that's a bit simplistic, it's close enough.)
The next in the series is
Clouds of Witness, which is in the Ian Carmichael set, along with
Murder Must Advertise which is a personal favourite. In the Petherbridge group, I would go for the first of them,
Strong Poison, which introduces Harriet Vane as Lord Peter tries to save her from certain hanging for murder.