Okay, I've been doing some laps of the circuit, and I have to say that initial impression are that it's a lot of fun. True, I have been largely sticking to circuits that I know while I get used to the handling, but based on what I've seen of India, I think it's fairly safe to say that at the very least, the drivers will have a lot of fun with it.
Yes, the first half of the circuit is all long straights and heavy braking zones. But it's almost as if Tilke is aware of it and it making an in-joke; the distance from the start line to the first corner is just far enough that everyone will be in the thick of battling for position when the braking point arrives. And the second corner really sneaks up on you - it's very tempting to take the second bend flat out, only to realise you've missed the apex. It feels like a corner that has been designed so that it is very easy to pressure another driver into a mistake.
The back half is a lot of fun, too. I particularly like the double-apex left with a right-hand flick, because it's really awkward - but in a good way. It's like you have to do three different things to get through the corner quickly, but you can only physically do two of them at any one time. It's kind of like Turn 12, 13 and 14 at Sepang. And that giant right-hander with banking is good fun, too. It's like a reverse Spoon Curve. And everything after it going up the hill is pretty damn good, too. In fact, it may be one of the best sections of circuit on the calendar.
Of course, that's just my opinion. I could be dead wrong, since I'm not a racing driver.