Since Google Search has always been free for users and relies on advertising revenue, shifting to a subscription model would represent a significant change that could alienate many users. However, with an increasing number of consumers favoring ad-free experiences, there may be some users willing to pay for a search experience without ads. The subscription price should be competitively priced in line with current market rates. A tiered pricing structure could be effective, offering a basic ad-free experience for a lower fee, such as $3 per month, and additional premium features at a higher price point. To evaluate the success of this model, we would track metrics such as the number of subscribers, retention rates, user feedback, and the overall effect on Google's revenue. Additionally, I would closely monitor whether this subscription initiative enables competitors to capture a larger share of the market.