I used Android for 2.5 years. I still have an Android tablet. I use to have a GSM Galaxy Nexus (GSM is only one that gets timely updates). Android performance is not good. Buggy, laggy and choppy compared to iOS on my 4s. Android uses old non touch legacy code and uses code that interferes with the users processes. It will always be laggy and or choppy unless Android rewrites everything entirely. So you will get a huge amount of features and options with Android but you will also get bugs, lag, etc and will need to root to fix them, but still then you will have issues.