I flew AI
a few weeks ago on their LHR
route and paid the fare of £150 excluding tax, about £60 cheaper than all other airlines at the time we were shopping around - wasn't the best flight ever, but I guess you get what you paid for.
Food was OK
(choices between Continental and Indian meals), wide range of beverages (alcoholic and non alcoholic) and a pleasant service. If you happen to get one of their older 747-400s - request for seats in Zone B (up to row 36) where there are 9 seats per row and extra seatpitch.
The few things keeping me away from flying AI
again are some of the passengers on their flight who can sometimes be a bit overwhelming, the state of the older cabin (masking tape on the seats, old chewing gum on seat fabric and at times revolting lavatories) - if you get VT
-EVJ like I did on the way back, you'll be more than fine.