[axel77]

at least get the repair engineers in person union to make a small QA test before sending the thing back. Iwas a service engineer. I always ran the self test before I send something back, a well coded (interactive) self test will catch the majority of all possible faults, if not all faults that are caused by forgetting to connect anything..

IMHO the importance of QA depends on where you position yourself in the market. If you stand for high quality, but elevated price against the competition (which IMHO the iLIad is) than QA is very important, if you are the price cutter on the marktet, than its okay, I as customer knew that go this risk by trying to safe money...