Recently, my mom was to travel to newark , US via Mumbai from Bangalore. Later realized that the Jetairways transfer in Mumbai was from Domestic Airport to International airport . If I had known this I would have preferred some direct same airport airline, because my mom was travelling for first time in air and did not speak english or hindi.

I was told that in Mumbai domestic airport, (In middle of night) there were no Jetair personal to properly guide her to their transfer shuttle. The terminus was changed and no info or assistance was given. It was just 2.5 hr layover and finally reached international airport with so much tension and confusion only becuause some gentleman was kind enough to understand my moms predicament and help her out.

Initially I had heard Jetair ways has good service and as it had a new direct service from bangalore to ewr and booked the flight. The lesson for me was :
1. Not to book via Jet Air
2. Not to book in an airline where there are multiple airport transfers

I am sure others probably have had better experience, in my case I was judging jets service where language barrier and old age combination is among their customers.
Regards