Not trying to be funny, but I think Ebuyer recommendation and approval might have already been registered on this forum many times. Quite a number of forum users plus myself use Ebuyer on a regular basis, for the same reasons you have provided. So top marks to that one.
On a personal note, I also use Amazon on a weekly basis, mainly their Market Place, and I have never had a problem yet, or at least, ones that have not been sorted in rapid time. So on a personal note, top marks to Amazon as well.