My experience with google ads was not great. I once ran google ads for my mom's online shop. Before, there was a constant stream of visitors and revenue. With google ads, the visitor rate went up crazy - the revenue, not at all! Despite the fact that the ad was very specific for what you could buy for how much. Once the google ad credits were all used up, the visitors rate dropped to almost zero. As if google was punishing us for not running ads anymore.