The mobile phone has a unique design and is similar to almost every Galaxy Model! At first I was still skeptical and thought it would be really bad because it was just jerking on. The solution I found eventually by rebooting the system and miraculously I finally konnt Apps like Facebook etc. use easily. At the same time I have a microSD card inserted but unfortunately you can not install apps on it! This means that the cell phone because internal 4GB but there are only 2.1 GB are available, one should not too much to pack it. The MicroSD but you can make good use of the photos, videos, music etc..
When a Sim card MicroSim is used! Please plan to make and use an emergency simcards adapter.
I hope I could help you a bit and think about the set up anch necessarily start new cell phone!
So little update from 09.29.2014!
Be sure to connect to the PC and Samsung neighborhood! There is a new firmware is partly filled with the cell phone much improved! There is still more fluid and really very good!