I've placed approx. 15k orders with Amazon Germany in 20 years and have probably had less than 100 issues, mostly with FBA sellers. I get an answer from CS within 10 minutes and 1-day shipments are on time ~98%. Refunds are issued as soon as I drop the package in the return box. Call me a fan.
The best experience is still Amazon JP but returns are a little more complicated (Even within Japan) — Obviously b/c you more or less do not return stuff in JP [Hansei (反省].
The best experience is still Amazon JP but returns are a little more complicated (Even within Japan) — Obviously b/c you more or less do not return stuff in JP [Hansei (反省].