The little app handles my needs when Im away from my desktop or laptop. It lets me import my Guitar Pro music for play and review and it does that very well.
It is limited in its editing capacity but still capable of cranking out single instrument tunes or creating riffs, licks, etc. For example, I realize that it is a simple composition but I used the Guitar Pro app on my iPad mini to write out Griegs "In the Hall of the Mountain King" for the bass. Very easy to do even with no instructions from the app manufacture however, I am a regular Guitar Pro User.
Come people, its not even close to the "full size" Guitar Pro 6 program but it is quite handy for song review. Furthermore, I would never want to write an entire piece for a bunch of instruments on my iPad.
It excels if you find a piece on the Internet and want to hear how that person put it together in any version of Guitar Pro.
One more trick Ive done. A friend of mine plays Bluegrass and would like me to accompany him on a few songs in the near future. Since Im not a Bluegrass player I was not familiar with the songs. He sent them to me in a program called Tabledit. I then imported them into my desktop version of Guitar Pro and from there sent them to my iPad. Ive been able to read the music, listen to all the tunes of all songs, and turn up the volume and play along in a motel room while Im on the road. So far I even like a couple of the songs.
What a fun and useful app.
BAL707 about Guitar Pro, v1.7.2