This tool is very useful to monitor page load speed of our websites as well as other aspects such us SEO or mobile friendliness etc.. It's also possible use this software in combination with Google Analytics so it will be even better! I think that there are some features which could have been improved but nothing major - maybe more options about alerts? Maybe support regarding different platforms (mobile apps). And lastly we can not add custom tags / filters if needed by users because sometimes they need them when using analytics tools like GA-Google Analyticseor others. We're solving problems related to performance monitoring and optimization from both technical point of view while trying to improve user experience at same time.