Happy? Yup. After moving there last year, and being there for 10 months, I was back here in March. That was a test -- how would I feel? It felt great for 2 days, then I was absolutely sure I didn't want to live in the U.S. permanently again. There's something in India, intangible, that is missing here. It's something one feels inside, at an unspoken level.
It wasn't a bad change for me or the missus; we both moved here as adults. Was a bit hard on my kid who was born and raised in CA. But in about 6 months, she was happy as a clam. She has more friends there than she ever had here, has a childhood (which she didn't here for various reasons), and has tons of cousins and relatives (all of the missus' side, most of mine). So it's worked out really well.
I have never flown Air India; they're known for shoddy service and for abandoning passengers when things go wrong. We've always flown Malaysian Air or Singapore Air (the best IMO - superb service, every plane < 5 years old).
Total time in the air is ~ 24 hours. Longest leg is Los Angeles to Kuala Lumpur or Singapore, which is ~ 20 hours, but there is a refuelling halt on the way - usually Taipei, which is ~ 14 hours from Los Angeles. KL/Singapore to Chennai/Bangalore is about 3.5 hours. There is usually a layover in KL or Singapore of 8-10 hours going from LAX to India, but only an hour or two flying the other way. Head/Tail winds will add or subtract 2-3 hours between the U.S. and SE Asia. One way you have headwinds, the other tailwinds, can't remember which occurs going which way. Fairly turbulent over Taiwan. On my way into the U.S. this time, we hit a really nasty air pocket; we must have dropped for a continuous 3-4 seconds.
Flights to - from India and SE Asia depart at night. Flying to the U.S., one leaves India at night and arrives at LAX the next day midday :-D, thanks to crossing the dateline (you gain a day). Going from LAX to India, you'd leave on say, Friday night, and be in India Sunday night (you lose a day).
I've already done 1.5 trips this year; I'll be doing at least three round trips in 2007
; one eventually learns to deal with the long hours.