Translation quality: Rules for Success
Contrary maybe to your experience, getting a good quality translation is not a Russian roulette game... I put three bullets in the 6-bullet cylinder, I have a good 50/50 chance surviving pulling the trigger... I did my due diligence when selecting my translator/translation agency, I can be reasonably certain of the successful outcome...
Maybe. But leaving things to chance does not bode well for your final satisfaction. In fact, empirical data show that the editing time spent on any translation does not increase/decrease in linear proportions with the quality (or lack thereof) of the job done.