The ability for us to analyze all aspects within one platform is amazing! And it's easy enough if you know your way around Google Sheets or Excel so there really isn't anything I dislike about this software from my experience thus far (we have only used 5% because we were having issues setting up but since then haven't had any problems).
There are plenty of tutorials online as well which makes getting setup pretty quick. If you don’t already use these tools regularly they may require some training before using fully; however once set up can be very useful when tracking trends in metrics like conversion rate etc.