I finished this the middle of last month. The first Lord Peter mystery I read was Strong Poison ( I love the character Harriet Vane). I've also finished The Nine Tailors and Have His Carcase. It feels good to finally have finished the first one. As usual, Lord Peter's energy was contagious straight from the pages. And as always, Wimsey's faithful manservant Mervyn Bunter played assistant detective with his photographic skills and patience in suffering fools. But the story itself is a little disappointing, you know early on who the murderer is because there's no other reason for introducing the character. I spent a good part of the story waiting to hear the murder details explained, but not the murderer. And the other reoccurring characters come on more...what's the word I'm looking for...overdone? than in later stories. No criticism against Sayers, she does a fantastic job of developing her style and characters down the line. I think she's making fun of the British upper class, but I could be wrong, satire isn't my strongest suit.
It's an entertaining story, I enjoyed it. But I think if I had read this first written Lord Peter mystery first, I would have been disappointed. If you're new to Lord Peter or Dorothy L. Sayers, I'd suggest working your way backwards and start with a later publication. Just my two cents speaking from experience.