Regardless of whether you use this feature or not, the intelligent voice assistant is an integral part of every system. In recent years, voice assistants have progressed on all platforms. However, according to recent research, Google Assistant's performance seems to be the best.
According to the results of two recently published studies, Stone Temple Consulting and ROAST, Google Assistant was able to answer the most questions, and the accuracy was also very high. In the Stone Temple study, more than 5,000 questions were asked to different intelligent voice assistants. Google Assistant can answer nearly 80% of the questions, accuracy is more than 90%, and the relative Apple Siri can only answer 40% of the questions, accuracy is about 80%.
The ROAST study focused on Google Assistant and asked about 10,000 questions in different categories. As a result, about 24% of the questions could be answered. Among them, the problems with traffic were the worst, and the problems with restaurants were the highest. Of course, these studies are based on the English version of the test object, Chinese or Cantonese, I believe there will be different performance.