looking at the fact there are several nations buying the aircraft for their military needs should speak volumes countries like the UK Australia, Canada, Denmark Italy Japan, etc, surely if it was a lemon it wouldn't be bought by so many
the problem most would have is the price tag at 75-80 mill. but looking at the aircraft it is intending to replace, and the fact is is being marketed as an air force as well as naval aircraft. then the price won't be cheap if it is expected to do all these tasks well