Bought this to use with my Samsung S4. Works great via Drivelink (I am using a modified Drivelink which allows full mirroring). Whatever my phone can do... my stereo can do. Facebook, email, music, navigation, all through mirrorlink. I also bypassed the parking brake so the kids could watch a movie. Also make sure you upgrade your firmware as it may be out of date.
The unit also has great sound quality. Just tune the EQ yourself (this is your highs, mid, bass) and set the time alignment manually. The stock settings are not that great but once tuned correctly it sounds amazing.
Great sound and decent picture too, can't go wrong! Now I am just waiting to install my backup camera.