I have used ETL tools for years, but this is by far the best one out there. The fact that it has an easy GUI tool is amazing. I can create my own processes with ease. I don't need to learn another language or API. It's all in one place. I am still learning how to use it efficiently, but it does what I need it to do. I've never had issues with ETL tools before. But so far, nothing. I'm not sure if it's because we haven't started using it yet, but everything seems to be working perfectly. We were looking for something that was simple, fast, and reliable. This fits the bill. There isn't anything I dislike about it. It just works. I highly recommend this product. If you're looking for something to help you extract data from multiple sources into one database, look no.