Agreed....zapped everything from my Galaxy Nexus to my Moto X without fail. Text messages, pictures, apps, etc. They did a good job with that application.
It did an awesome job updating from my Bionic to my Moto X about 6 months ago. Not only pics, music, and texts, but even the phone log if I remember correctly.
Worked flawlessly from my Thunderbolt to my Moto X. Was a real pain migrating from my son's dinc2 to his Moto X, but persistence paid off and I eventually got it all transferred. I think there was a problem with the wireless card on the old dinc2 that was causing the problem there. The app itself is awesome.