The best part about this product is that it has all the features you need to make sure your customers are always up-to-date with what's going on in your business. It also makes it easy for your customers to manage their subscription, which saves me time from having to go back and forth between my website and my customer portal. I have not found any downsides yet. I would definitely recommend this product to other businesses looking to implement an effective web push notification system. I am able to send out automatic emails to my customers every time something changes in my store. This helps them stay informed of new products, promotions, etc.