The best thing about this emulator is that it can run both android apps as well as iOS apps at once, which makes testing of both platforms easier than ever before! I dislike how slow the emulator runs compared to real devices. Sometimes i have to wait up to 15 minutes just to load one page in my web browser (which usually takes less time). This has nothing to do with genyMotion itself but more so because of the way chrome handles javascript code. If you are looking for an easy solution to test your applications across multiple OSes then go ahead and use genyMotion. You will not regret using it. We were able to quickly develop our application without having to worry about compatibility issues.