+William Levra-Juillet That is a long-term concern, but I don't intend to use the CHAdeMO adapter day-to-day. It's for occasional use and for emergency charging. I would assume the Japanese Model S users would use it more often, and need to see what their long-term experience has been.
We've had both our Teslas worked on by Moe and his team at Glistening Perfection. Though I am often wary of those that would put the word "perfection" in their name, I could attest that the attention to detail and execution is what makes us repeat customers.