Thanks everyone for the positive feedback!
It could even sound better if the power chords (1, 5) could be played one octave or two lower.
I've already suggested a while ago to the IRP support team if they could lower the octave for power chords. Those chords are usually played in lower range, not high range. I hope they will fix this some days.
Having kicks and pushes implemented would also be a great add instead of having to always compromise between an easy to read chart and a good play-along