I don’t like short stories but I’ve to admit it’s rather useful when you don’t have the mind to read a huge book. This compilation of different stories is great because you have different types of stories: from love advisor Mr. Parker Pyne to detective Hercule Poirot, you have choice! The stories aren’t all about murders and that’s great, and the stories about murders are fast which is also great. 
I give it 4 stars only because even if the stories are great, I sometimes struggled to understand them and I’m not so sure about how the resolution of the problems. But overall I loved discovering many different characters and different crimes and problems.