The best thing about EffectiveExperiments is that it offers all the essential tools to run A/B tests, such as A/B testing software, heatmaps, and funnel analysis. There are also many integrations with other platforms like Google Analytics and MailChimp. It's also very easy to use. One thing I don't care much for is the interface. It could be more user-friendly. I'm solving my needs of running AB tests for one of our clients. The tool has been very helpful in finding out which variations are most effective and where we need to improve.