The interface is very simple & intuitive which makes it easy to use, even if you have no experience in this area of work. I had almost zero issues while using it as my search engine during my training period with them. It's not like there are any bugs or anything that may cause problems but what i can say about their support team is pretty amazing. They always respond within few minutes and they also make sure everything gets resolved. Sometimes we get some errors due to our internet connection (which doesn't happen often) but once again they fix those quickly too and don't charge us extra fees like other companies do. My only problem is when i'm searching something specific for example "android", sometimes results aren't exactly what i want so then i need to filter more by adding additional words etc., maybe someone knows how to solve that.