AI is having good ground service and air service, but the time it tooks say from ahmedabad to chicago, via mumbai nearly 29 hours....very horrible. Also the seating space is not comfirtable, particularly when travelling with baby / kids. The size of so-called "swing" for babies are too small that the baby will not be able to take good, sound and comfirtable sleep. Regarding food, there are 50-50 review from my side. Because they are not providing good veg. food, which kids can take. Also it use to be too cold that it may not be suitable to eat for such a long flight schedule.
Now on Cost basis, it is costly compared to other flight options available, which are far better in their schedule and time. They provide nearly 16-20 hours of journey from mumbai, almost 6-8 hours less than AI.
If someone with no choice of flight from their state directly to USA, had to bare AI at any cost. But if you can have other options, do use that instead of AI. I am dame sure, you will be satisfied by others compared to AI...