I have been using Roistat for comprehensive analytics of advertising campaigns for six months. The advantages include a wide range of analysis features — you can track the entire customer journey from the first click to the deal. There are integrations with major advertising platforms, and the technical support is knowledgeable. However, the high subscription cost is the main downside for small businesses. Some features may lag during the initial setup, especially if you lack experience in web analytics. The price/quality ratio is justified for medium and large businesses, but not for small projects.