I have not finished yet, but I'm already very satisfied ... Given my recent migration to Linux, I've (re) found a lot of useful information, or that I did not have understood the first time. Full of advice and guidance in relation to the hardware (eg the minimum amperage that food should have) or repairing faults, installation of WiFi, self-powered USB hub so as not to "shoot "current, etc. It is clear, well written, detailed but comprehensive. Excellent summary in French, which saves a lot of time compared to Internet searches. A reference, in my opinion ... I'll hurry to finish the ordering my Raspi :-)