I am using opera mini web browser from last 4 years and I can say that opera mini improves a lot within 4 years. I mostly used opera mini for facebook and browsing. The best thing about opera mini is that it consumes a less space in your mobile amd gives you better interface. As you can say it is more user friendly. Opera mini is faster and also consumes less data. Also the good thing is that, you can see news feed on the homepage of opera mini. You can manage downloads and also can set the quality of photos while visiting any website in settings. Downloading is quite fast in opera mini. I will prefer opera mini than google chrome and firefox. It is so easy for installation, it just take few seconds.