I believe online reviews are highly useful when deciding whether to buy a product or service, as they provide both time-saving efficiency and support for diverse, innovative choices. Firstly, online reviews improve decision-making efficiency by offering concise summaries of product experiences. Many platforms now allow users to filter reviews based on relevance or star rating, which saves consumers time when they need to assess a product quickly. For example, when purchasing an electronic gadget, a prospective buyer can look at top-rated reviews to gauge common benefits and drawbacks, helping them decide more confidently and promptly. Additionally, online reviews foster diversity and innovation by giving visibility to a wide range of products and services from both established brands and emerging companies. This exposure to a broader market promotes healthy competition and encourages companies to innovate. By reading diverse perspectives, consumers are also more likely to try new or lesser-known options, which supports variety and originality in the market.