Easy to use, fast response time, easy to configure, very intuitive, can monitor multiple devices at once, great support from their team. Nothing really, it's good. It's not that bad either. I've used many products on this market and this one seems to be the best overall. We were looking for something with a lot of features, so we could do complex tests, but in a simple way. The product covers all our needs, we have been able to perform many tests and find problems without too much effort, it has been very useful for us.