Android File Transfer for Linux — a reliable MTP client with minimalistic UI similar to Android File Transfer. "It just works™.
If you're happy with gmtp/gvfs/mtpfs or any other MTP software, you might not need this software (but give it a try!).
If you're suffering from incompatibility, crashes, missing tags, album covers, USB freezes, and corrupted files however, this software is right for you.
kcp -i android-file-transfer