We use appt as an analytics tool for our iOS apps that have large customer bases (over 1m installs). It is easy enough of anyone can understand it but also powerful when used correctly by data scientists who know how things work under hoods or even marketers if they put some time into learning its nuances before taking advantage off this feature set's power features! I cannot say anything bad because everything works well so far - reporting performance at different locations globally; customised filters such us OS version etc.; realtime updates without any lag issues which most other tools tend towards sometimes despite having servers everywhere around globe ;etc Apptimize is a powerful, easy to use tool that allows you to test changes to your website in a matter of minutes. It's easy to set up, easy to use, and the support team is extremely responsive. There aren't any downsides to using Apptimize. If you are looking to test changes to your website, this is a great tool to use. Apptimize has allowed us to test changes to our website and identify issues very quickly. It also allows us to test changes in a matter of minutes.