Summary: After having the Galaxy S2, this phone is a dream. I was always worried about the battery not making it thru the day. The operating system on this phone (ICS) is more stable than the Gingerbread which used to freeze up often. The first one of these I bought had a problem accepting my sim card right away. I got it to work but it was intermittent. I ordered another phone and initiated a return easily thru Amazon.