The best part is that it's free to use for small scale deployments, but you can upgrade your plan if needed at any point in time without paying additional fees! I have used this product from last 4 years with no issues or complaints yet as of now!! Nothing much so far except some minor UI/UX improvements are required & would be great enhancement once implemented. If need support while using Rasp feature then go ahead otherwise there isn't anything worth mentioning apart maybe few bugs here nthere which could easily get resolved by their Support Team!! For sure recommend to every organization who want real world experience regarding Security threats faced during web applications usage along side other features like Anti Viberation etc available through same package!