The HR are very nice, coordinate the way they need to!
It is somewhat intense to follow the process, and you need to be motivated.
The excel test is not as difficult as you might read, now... you will need to focus for real!
I got put aside on the 3rd stage of the process, the person that interviewed me on the phone me was, I guess, disturbed or too busy to pay attention, a lot background noises made it very difficult to communicate. That same person did not step out of the guide he was really reading a script... Was not fun.