I, too, have used this guy (I live in Chantonnay). My French is passable but techno jargon is out of the question for me (...it was in England!). I found him helpful and knowledgable. The shop is tiny and a tad untidy but his quality of service is testified to by the fact that there are always folk gathered there chatting away, a bit like a club, so you need to "insert" yourself and ask for service otherwise it will be assumed that you, too want to "hang out"! RogerM