It's very easy to use, it runs in real time without taking up resources from your server or application running under its control which is great! The only thing I don't like about opsion monitoring system as compared with other systems out there, but that could be because of my own inexperience using this product - maybe others have different opinions? We're able monitor our sites/apps (which are all written by us) 24x7 so we can see how they behave when things go wrong if needed at times during off hours etc.