Supper app very user-friendly, good and clear representations of what you need to do.
Of course there is always something left to be wished for. For example, it would be a great help to me if there was a page under the Learn heading where all the instruction videos are listed, so that you can find them more easily and quickly when you have some time, but unfortunately do not have the instrument at hand to practice.
I also wondered if it is possible to offer an extra option in Notation options, A combination of the options TAB & NOTES + STANDARD. This would help me to learn the musical notes while play along with Yousician.